Answers by visitors named: billy bob joe
philly cheese steaks
Hammurabi who was the king of Ancient Babylon produced a set of laws displayed on pillars that were put around town to make sure everything can consist in “an eye for an eye.”
billy billy bob bob joe joe
the answer is 30
Since $2015=5 \cdot 13 \cdot 31$, we know $2015$ has $(1+1)(1+1)(1+1)=8$ positive divisors. To create a number $n$ with 8 divisors, we have a few choices for its prime factorization. If $n$ is divisible by only one prime, it must look like $p^7$. With two primes, $n$ will have the form $p^3q$, and with three primes, $n$ must be of the form $pqr$, where $p$,$q$, and $r$ are distinct primes.
Now, we try to make each of these factorizations as small as possible while forcing some overlap with the factorization of $2015$. This will ensure that our new number is not relatively prime with 2015, or $\mathrm{gcd}(n,2015)>1$. Since $2015$ involves the primes $5$, $13$, and $31$, our new number should involve the prime $5$. To maintain minimality, we will use $2$ and $3$ if additional primes are needed. Remember, though, that $5$ must appear somewhere in the factorization!
Making these substitutions, we have $p^7=5^7=78125$, $p^3q=2^3 \cdot 5=40$, and $pqr=2 \cdot 3 \cdot 5 = 30$. So, the minimal choice is $\boxed{30}$.
In 3–5 sentences, explain how the shape of planetary orbits affects their orbital velocity. Include the proper law of planetary motion as part of your answer.
Which form of Kepler’s third law can you use to relate the period T and radius r of a planet in our solar system as long as the unit year is used for the period and astronomical unit is used for the radius?(1 point)
Responses
T2=r3
cap t squared is equal to r cubed
T=r2
cap t is equal to r squared
T2=r
cap t squared is equal to r
T3=r2
The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same, assuming they remain the same distance apart?(1 point)
Responses
The amount of the gravitational force quadruples.
The amount of the gravitational force quadruples.
The amount of the gravitational force remains the same.
The amount of the gravitational force remains the same.
The amount of the gravitational force decreases by one-half.
The amount of the gravitational force decreases by one-half.
The amount of the gravitational force doubles.
In 3-5 sentences, describe how Copernicus developed his model of the solar system. In your answer, include an explanation for why his model was, or was not, readily accepted at the time
Which of the following statements about Newton's theory of universal gravitation are true? Select the three correct answers.(2 points)
Responses
The theory applies only to objects on Earth.
The theory applies only to objects on Earth.
The theory applies to all objects in the universe.
The theory applies to all objects in the universe.
Gravitational force increases as the distance between objects increases.
Gravitational force increases as the distance between objects increases.
Gravitational force increases as mass of objects decreases.
Gravitational force increases as mass of objects decreases.
Gravitational force increases as the distance between objects decreases.
Gravitational force increases as the distance between objects decreases.
Gravitational force increases as the mass of objects increases.
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to an orbital radius of 5r?(1 point)
Responses
15√v
the fraction with numerator 1 and denominator square root of 5 v
15v
1 fifth v
5–√v
square root of 5 v
5v
Based on Kepler's observations about planetary motion, what is the relationship between a planet's orbital velocity and its distance from the sun?(1 point)
Responses
As distance is cut in half, orbital velocity decreases.
As distance is cut in half, orbital velocity decreases.
The greater the distance, the slower the orbital velocity.
The greater the distance, the slower the orbital velocity.
The greater the distance, the greater the orbital velocity.
The greater the distance, the greater the orbital velocity.
Distance has no effect on orbital velocity.
Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?(1 point)
Responses
The distance to the sun varies.
The distance to the sun varies.
The planets have circular orbits.
The planets have circular orbits.
Most planets have highly elliptical orbits.
Most planets have highly elliptical orbits.
The distance between Mars and the sun is constant.
n 3-5 sentences, analyze why Aristotle's and Ptolemy's models were accepted for more than a thousand years in spite of being completely incorrect. In your answer, use the term geocentric
What shape is the moon's orbit around Earth?(1 point)
Responses
a circle
a circle
an ellipse that is almost circular
an ellipse that is almost circular
a spiral
a spiral
an ellipse that is elongated
An asteroid approaches Jupiter and is slung around into a new trajectory across the solar system. Which of the following are possible? Select the three correct answers.(2 points)
Responses
The asteroid enters a stable elliptical orbit around the sun.
The asteroid enters a stable elliptical orbit around the sun.
The asteroid adopts an unusual orbit around the sun, such as an egg shape.
The asteroid adopts an unusual orbit around the sun, such as an egg shape.
The asteroid spirals into the sun.
The asteroid spirals into the sun.
The asteroid falls into an irregular orbit around Jupiter.
The asteroid falls into an irregular orbit around Jupiter.
The asteroid continues out of the solar system.
The asteroid continues out of the solar system.
The asteroid slows down as it passes around Jupiter.
For a moon orbiting its planet, rp
is the shortest distance between the moon and its planet and ra
is the longest distance between the moon and its planet. What is a moon's orbital eccentricity if rp
is equal to 0.27ra
?(1 point)
Responses
0.57
0.57
0.65
0.65
0.27
0.27
0.48
Which statements about the geocentric model are false? Select the two correct answers.(1 point)
Responses
It explains why Mars appears to move backward for a few months approximately every two years.
It explains why Mars appears to move backward for a few months approximately every two years.
It shows the Sun at the center of the solar system.
It shows the Sun at the center of the solar system.
It shows the orbits of the planets as circular.
It shows the orbits of the planets as circular.
It shows Earth at the center of the solar system.
A line between a planet and the sun sweeps out two equal areas at different places as it moves along its orbit. Which factor remains constant as this happens?(1 point)
Responses
the distance the planet moves along its orbit while it sweeps out the area
the distance the planet moves along its orbit while it sweeps out the area
the time required to sweep out the areas
the time required to sweep out the areas
the planet’s speed as it sweeps out the areas
the planet’s speed as it sweeps out the areas
the distance from the sun to the planet while it sweeps out the areas
What causes a supernova?(1 point)
Responses
force of gravity
force of gravity
force of a nebula
force of a nebula
energy of heat
energy of heat
energy of a nebula
Question
How can a planetary nebula be identified? Select the two correct answers.(1 point)
Responses
diffuse edges
diffuse edges
spherical shape
spherical shape
dark area
dark area
central star remnant
What does it mean to characterize a nebula as diffuse?(1 point)
Responses
Its edges do not have clear boundaries.
Its edges do not have clear boundaries.
It reflects only visible radiation.
It reflects only visible radiation.
Its edges have clear boundaries.
Its edges have clear boundaries.
It reflects only non-visible radiation.
Multiple Choice
Is –7 + 9 = –9 + 7 true, false, or open?
(1 point)
Responses
true
true
false
false
open
Is 4x – 3 = 19 true, false, or open?
(1 point)
Responses
true
true
false
false
open
Which of the following is a solution to the equation 16 = 4x – 4?
(1 point)
Responses
–5
–5
–4
–4
5
5
16
An art student wants to make a model of a rectangular classroom. The length of the classroom is 2.4 times its width. The length of the student’s model is 42 in. What should the width of the model be?
(1 point)
Responses
17.5 in
17.5 in
20.5 in
20.5 in
83.6 in
83.6 in
100.8 in
Use mental math to determine the solution to x – 3 = 10.
(1 point)
Responses
x = 7
x = 7
x = 13
x = 13
x = 30
x = 30
x = 0
x = 0
How would you say “in second period” in Spanish?
(1 point)
Responses
en el sexto hora
en el sexto hora
en la sexta hora
en la sexta hora
en el segundo hora
en el segundo hora
en la segunda hora
How would you write 1:30 p.m. using 24-hour time?
(1 point)
Responses
1:30
1:30
01:30
01:30
13:30
13:30
15:30
What does la clase de ciencias naturales es aburrida mean in English?
(1 point)
Responses
The science class is fun.
The science class is fun.
The social studies class is my favorite.
The social studies class is my favorite.
The computer science class is easy.
The computer science class is easy.
The science class is boring.
How do most students in Puerto Rico go to school?
(1 point)
Responses
They walk.
They walk.
They ride a bike.
They ride a bike.
They take a school bus.
They take a school bus.
They drive their own car.
What pronoun should you use to address a teacher in Puerto Rico?
(1 point)
Responses
ustedes
ustedes
tú
tú
usted
usted
vosotros
What was one of Gabriela Mistral’s favorite subjects for poems?
(1 point)
Responses
nature
nature
politics
politics
teaching
teaching
living abroad
From what country did many of the families of students at Miami High School come?
(1 point)
Responses
Cuba
Cuba
Argentina
Argentina
Italy
Italy
Spain
How would you ask, “Who has Spanish class?” in Spanish?
(1 point)
Responses
¿Quién habla español?
¿Quién habla español?
¿Él habla español?
¿Él habla español?
¿Ustedes tienen clases de español?
¿Ustedes tienen clases de español?
¿Quién tiene clases de español?
What is Gabriela Mistral famous for?
(1 point)
Responses
being the first Latin American writer to win the Nobel Prize
being the first Latin American writer to win the Nobel Prize
being the first Chilean to travel to France
being the first Chilean to travel to France
being the first Argentinian to publish a book of poems
being the first Argentinian to publish a book of poems
being the first female president of Ecuador
In which situation is reaction time the MOST important skill for an athlete to use?
(1 point)
Responses
a golfer tees off on a long hole
a golfer tees off on a long hole
a gymnast dismounts from the beam
a gymnast dismounts from the beam
a boxer blocks a punch from the opponent
a boxer blocks a punch from the opponent
a cyclist makes a sharp turn in a race
Josefine says, “I have zero coordination skills.” How would this MOST likely be demonstrated in her gym class?
(1 point)
Responses
She always misses the ball when she tries to kick it.
She always misses the ball when she tries to kick it.
She is always the last one to finish their warm-up walk.
She is always the last one to finish their warm-up walk.
She lifts the lowest amount of weight possible with her arms.
She lifts the lowest amount of weight possible with her arms.
She never reaches her target heart rate when jogging.
Portia was hired as a yoga instructor. Which skill-related component will she MOST likely use in this role?
(1 point)
Responses
balance
balance
speed
speed
reaction time
reaction time
power
What is MOST likely TRUE about skills?
(1 point)
Responses
Very few people have the capability to improve their skills.
Very few people have the capability to improve their skills.
The more a skill is practiced, the more likely it will become a habit.
The more a skill is practiced, the more likely it will become a habit.
Skills developed for one activity cannot transfer to another activity.
Skills developed for one activity cannot transfer to another activity.
Balance and power are inherited skills that individuals are born with.
Henri was born with a condition that makes it complicated for him to improve his gross motor coordination. However, his fine motor coordination is very well-developed. When visiting a physical therapist, what will likely be the MOST common focus of Henri’s treatments?
(1 point)
Responses
exercises to increase his speed
exercises to increase his speed
exercises to raise his heart rate
exercises to raise his heart rate
exercises involving heavy weights
exercises involving heavy weights
exercises involving large muscles
A baseball player has two strikes and has to keep fouling the ball off of his bat until he gets the right pitch. This player manages to make contact to foul 10 pitches in a row before getting a hit. Which skill-related component of fitness does this MOST accurately demonstrate?
(1 point)
Responses
balance
balance
coordination
coordination
strength
strength
flexibility
During a weightlifting competition, athletes are asked to lift an extremely large amount of weight in a short amount of time. Which skill-related component do the athletes in this competition likely demonstrate MOST frequently?
(1 point)
Responses
power
power
coordination
coordination
balance
balance
speed
Marcie wants to improve her balance. What is the MOST helpful exercise she should perform to reach this goal?
(1 point)
Responses
Do time shuttle runs for 30 seconds.
Do time shuttle runs for 30 seconds.
Jump front and back and side to side.
Jump front and back and side to side.
Stand on one foot, then switch sides.
Stand on one foot, then switch sides.
Do high-knee drills through a ladder.
Jaden struggles with demonstrating power on the basketball court. What other skills should he develop to MOST efficiently help him increase his power levels?
(1 point)
Responses
agility and flexibility
agility and flexibility
endurance and reaction time
endurance and reaction time
coordination and balance
coordination and balance
strength and speed
What is MOST likely TRUE about speed?
(1 point)
Responses
It is only used in sports involving racing, such as running and cycling.
It is only used in sports involving racing, such as running and cycling.
It is mainly influenced by an athlete’s balance and agility.
It is mainly influenced by an athlete’s balance and agility.
It is controlled by the part of the brain known as the cerebellum.
It is controlled by the part of the brain known as the cerebellum.
It is most easily increased when resistance is at a minimum.
It is most easily increased when resistance is at a minimum.
Terrance was in an accident that caused damage to the part of his brain called the cerebellum. Which skill-related component will MOST likely be affected by this damage?
(1 point)
Responses
speed
speed
balance
balance
power
power
flexibility
Candace is a goalie on her hockey team who has a reputation for stopping every puck before it enters the goal. Which skill MOST likely helps Candace respond as the puck flies in her direction?
(1 point)
Responses
balance
balance
reaction time
reaction time
power
power
speed
Irene has excellent fine motor coordination. In what activity would she MOST likely excel based on this skillset?
(1 point)
Responses
walking
walking
doing gymnastics
doing gymnastics
playing the piano
playing the piano
swimming
Carlos ran his cross country race in 18 minutes. His goal is to finish his next one in under 17 minutes. What skill does Carlos MOST likely need to focus on to reach this goal?
(1 point)
Responses
balance
balance
reaction time
reaction time
speed
speed
coordination
Which component that makes up the bulk of all galaxies?(1 point)
Responses
gas
gas
stars
stars
dust
dust
dark matter
Which statements describe elliptical galaxies? Select the two correct answers.(1 point)
Responses
They include the Milky Way.
They include the Milky Way.
They typically contain very little gas and dust.
They typically contain very little gas and dust.
They are the most common galaxy type.
They are the most common galaxy type.
They include the universe's largest galaxies.
How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point)
Responses
Some have a band of stars and materials through their middle, but others do not.
Some have a band of stars and materials through their middle, but others do not.
Some are more elongated in shape than others.
Some are more elongated in shape than others.
They vary in the brightness of stars located on their arms.
They vary in the brightness of stars located on their arms.
They vary in how tightly their arms are wound.
According to astronomers, how many galaxies are distributed across the observable universe?(1 point)
Responses
1 trillion
1 trillion
100 billion
100 billion
several thousand
several thousand
50
thanks to you i got 1/4
Multiple Choice
Which of the following is an example of an open equation?
(1 point)
Responses
5x + 7 = 12
5 x + 7 = 12
12 + (–8) = 4
12 + (–8) = 4
25 = 5(5)
25 = 5(5)
8 + 0 = 8
Which of the following equations has 3 as a solution?
(1 point)
Responses
‒2b = 6
‒2 b = 6
4a ‒ 5 = 12
4 a ‒ 5 = 12
5y = y + 8
5 y = y + 8
z ‒ 15 = ‒12
Is (1, 5) a solution to the equation y = x – 2?
(1 point)
Responses
yes
yes
no
Is (–2, –6) a solution to the equation y = 3x?
(1 point)
Responses
yes
yes
no
Which of (3, 5), (4, 6), (5, 7), and (6, 8) are solutions to y = x + 2?
(1 point)
Responses
(3, 5) and (4, 6)
(3, 5) and (4, 6)
(4, 6) and (5, 7)
(4, 6) and (5, 7)
none
none
all
Which equation would be used to generate the data in the following table?
x y
1 8
2 16
3 24
4 32
(1 point)
Responses
x = 2y
x = 2 y
y = x + 7
y = x + 7
y = 2x
y = 2 x
y = 8x
y = 8 x
On a treadmill, you burn 11 calories in 1 minute, 22 calories in 2 minutes, 33 calories in 3 minutes, and so on. How many calories do you burn in 10 minutes?
(1 point)
Responses
50 calories
50 calories
100 calories
100 calories
110 calories
110 calories
1100 calories
1100 calories
What does it mean to use inductive reasoning to solve a problem?
(1 point)
Responses
to solve by guessing
to solve by guessing
to draw a picture
to draw a picture
to solve by observing patterns
to solve by observing patterns
to ask someone for help
Explain why (4, 1) is not a solution to the equation y = 3x + 1.
Drinks at the fair cost $2.50. Use an equation to represent the relationship between the numbers of drinks bought and the cost. Define your variable and make a table to help write the equation.
Something that is prevalent happens
(1 point)
Responses
very rarely.
very rarely.
occasionally.
occasionally.
often.
In which sentence below is the underlined word a predicate nominative?
(1 point)
Responses
Carmen is very interested in science, especially biology and anatomy.
Carmen is very interested in science, especially biology and anatomy.
Carmen plans to pursue a career as a doctor.
Carmen plans to pursue a career as a doctor.
Carmen is a volunteer at the local hospital.
Carmen is a volunteer at the local hospital.
According to the article "Educators Reach Out to Katrina Victims," what should educators and school personnel do to assist school-aged children after a national disaster?
(1 point)
Responses
develop a new sense of normalcy in school
develop a new sense of normalcy in school
do not use personal contact to evaluate them
do not use personal contact to evaluate them
completely relax disciplinary rules for traumatized children
Based on the choropleth map of the United States above, which of the below gets the most rainfall?
(1 point)
Responses
Illinois
Illinois
West Texas
West Texas
Northeast Montana
Northeast Montana
The northwest coast of Washington State.
The northwest coast of Washington State.
Skip to navigation
Which of the following is a geographical representation?(1 point)
Responses
A map.
A map.
A lake.
A lake.
A selfie.
A selfie.
A ruler.
Choose the list that orders units of latitude and longitude from largest to smallest.(1 point)
Responses
degrees, minutes, seconds
degrees, minutes, seconds
centimeters, meters, kilometers
centimeters, meters, kilometers
miles, degrees, ticks
miles, degrees, ticks
miles, feet, inches
What is the largest distortion in a Winkel Tripel projection?(1 point)
Responses
the distance between locations
the distance between locations
the relative shape and size of land masses
the relative shape and size of land masses
the area of land masses
the area of land masses
the latitude and longitude lines
Where is a Mercator projection map most commonly used?(1 point)
Responses
on the side of a mountain
on the side of a mountain
in a U.S. classroom
in a U.S. classroom
in a magazine or newspaper
in a magazine or newspaper
on a large body of water
China has the largest population of any country in the world. Russia has the largest land area of any country in the world. On a population cartogram of the world, which country would appear larger?(1 point)
Responses
Neither would appear on a population cartogram.
Neither would appear on a population cartogram.
China
China
Russia
Russia
They would appear to be the same size.
You want to make a map showing distribution of cattle in Brazil. What kind of map would be best to show this information?(1 point)
Responses
physical map
physical map
isoline map
isoline map
political map
political map
dot density map
What is the importance of understanding the functions of map properties?(1 point)
Responses
Map properties are used as guidelines to determine physical and political details of a place.
Map properties are used as guidelines to determine physical and political details of a place.
Map properties set boundaries for cultural regions, cultural groups, and their characteristics.
Map properties set boundaries for cultural regions, cultural groups, and their characteristics.
Map properties help geographers collect accurate information about distance, size, and location of a place.
Map properties help geographers collect accurate information about distance, size, and location of a place.
Map properties help geographers determine how continents are formed.
Which of the following would be consulted when wanting information about natural and human-made features?(1 point)
Responses
political map
political map
a globe
a globe
thematic map
thematic map
topographic map
Which of the following would not be included in a possible map legend?(1 point)
Responses
a compass rose for direction
a compass rose for direction
a ^ for a mountain
a ^ for a mountain
a star for a historic site
a star for a historic site
a * for a city
Which of the following layers would not be included in a digital map showing bat migration in the Southwest United States?(1 point)
Responses
A layer of arrows that show the directions of migrations.
A layer of arrows that show the directions of migrations.
A layer showing climate conditions of the southwest region.
A layer showing climate conditions of the southwest region.
A layer showing each type of bat that migrates in the region.
A layer showing each type of bat that migrates in the region.
A layer showing a map of southwestern states.
Displaying more than one set of data by using a GIS can help a geographer(1 point)
Responses
obscure irrelevant spatial data.
obscure irrelevant spatial data.
isolate a particular type of data.
isolate a particular type of data.
observe changes over time.
observe changes over time.
see possible relationships between the sets of data.
see possible relationships between the sets of data.
Look at the map of the share of the population of Florida’s counties that is Hispanic or Latino. Which of the following datasets would help you drill down for more depth on Florida’s Hispanics?(1 point)
Responses
Census data on business ownership
Census data on business ownership
Census data on household size
Census data on household size
Census data on language spoken at home
Census data on language spoken at home
Census data on income levels by educatio
Which question is an example of a research question that could best be answered with GIS?(1 point)
Responses
which of a city’s rapid transit routes are used the most
which of a city’s rapid transit routes are used the most
how a proposed commuter bike path might affect a city’s rush hour traffic
how a proposed commuter bike path might affect a city’s rush hour traffic
how much a city’s population has grown over time
how much a city’s population has grown over time
which building in a city houses the most people
Which is an example of a geographic problem caused by physical characteristics of a place?(1 point)
Responses
the spread of a disease through a city’s population
the spread of a disease through a city’s population
a stable route for a highway in an area that has frequent earthquakes
a stable route for a highway in an area that has frequent earthquakes
the spread of an invasive plant species
the spread of an invasive plant species
the migratory paths of a species of birds
What impact is climate change predicted to have on hurricanes?(1 point)
Responses
Climate change is predicted to make hurricanes less severe than in times past.
Climate change is predicted to make hurricanes less severe than in times past.
Climate change is predicted to increase the frequency of hurricanes.
Climate change is predicted to increase the frequency of hurricanes.
Climate change is predicted to decrease the wind intensity of hurricanes.
Climate change is predicted to decrease the wind intensity of hurricanes.
Climate change is predicted to increase the intensity of rainfall produced by hurricanes.
What would be a relevant piece of evidence for someone trying to decide whether to insure a new condominium building in Florida?(1 point)
Responses
the popularity of a reality TV show set in Miami
the popularity of a reality TV show set in Miami
the total dollar amount of Florida’s hurricane-related damage in the past five years
the total dollar amount of Florida’s hurricane-related damage in the past five years
the history of Henry Flagler’s development of railroads in Florida
the history of Henry Flagler’s development of railroads in Florida
the success of a re
In a few sentences, analyze why a map’s labels, key, and scale is important. Discuss each element individually and all elements combined.(2 points)
In one to two sentences, explain how maps can be considered hybrid maps.
Choose one of the four models discussed in the lesson and explain the benefits and drawbacks of using the model. In your answer consider these points:
What does the model explain?
What criticisms are made of the model?
What is the net utility of the model based on those points?
Which description best summarizes the steps that take place during black hole formation, in the correct order?(1 point)
Responses
Supernova explodes a massive star; remaining core expands; nuclear reactions diminish the effects of gravity.
Supernova explodes a massive star; remaining core expands; nuclear reactions diminish the effects of gravity.
A massive star depletes its nuclear fuel; gravity overpowers the star; supernova occurs; core of star collapses.
A massive star depletes its nuclear fuel; gravity overpowers the star; supernova occurs; core of star collapses.
Supernova triggers fusion reactions; massive star implodes due to extreme radiation; volume and mass of star increase rapidly.
Supernova triggers fusion reactions; massive star implodes due to extreme radiation; volume and mass of star increase rapidly.
A small star gains mass through fusion reactions; core of star collapses; increased radiation triggers a supernova.
Which statement best describes the galaxies closest to the Milky Way?(1 point)
Responses
These galaxies are all identified as spiral.
These galaxies are all identified as spiral.
These galaxies are independent of and unaffected by the Milky Way's gravitational pull.
These galaxies are independent of and unaffected by the Milky Way's gravitational pull.
These galaxies include irregular, spiral, and elliptical types.
These galaxies include irregular, spiral, and elliptical types.
These galaxies consist of mostly old stars.
How do emission and reflection nebulae differ?(1 point)
Responses
the presence of young stars
the presence of young stars
interactions with light
interactions with light
contain remnants of stars
contain remnants of stars
hard line edges
Question
Select the correct answer from the list.(1 point)
To form a nebula,
Select Answer
pulls matter together or causes
Select Answer
.
Where could scientists look to observe a black hole?(1 point)
Responses
the center of the Milky Way
the center of the Milky Way
the center of the sun
the center of the sun
the solar system asteroid belt
the solar system asteroid belt
the edge of the solar system
Select the correct answer from the list.(1 point)
Astronomers think that most galaxies are centered by a
Select Answer
, which exerts
Select Answer
that binds the galaxy together.
Which of these characteristics of a star make it most likely to become a black hole? Select the two correct answers.(1 point)
Responses
It is dying.
It is dying.
It has an abundant supply of hydrogen.
It has an abundant supply of hydrogen.
Its mass is greater than 20 times the mass of the sun.
Its mass is greater than 20 times the mass of the sun.
Its mass is equal to that of the sun.
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You know these facts about a region: Ninety percent of the region’s population lives in cities full of coal-burning factories; a wide, deep river connects those cities; the population is highly educated and includes a low percentage of foreign-born residents. Which of the following would be a reasonable inference about this region?(1 point)
Responses
Agriculture is a major economic activity.
Agriculture is a major economic activity.
Poverty is probably widespread.
Poverty is probably widespread.
Air and water pollution are probably major environmental problems in the region.
Air and water pollution are probably major environmental problems in the region.
The population is probably aging.
In a metropolitan area, suburbs are connected by commerce, employment opportunities, and supply chains to the cities that surround them. What kind of region does this indicate?(1 point)
Responses
A cultural region
A cultural region
A physical region
A physical region
A political region
A political region
An economic region
What do we call an area of land with common physical or cultural features?(1 point)
Responses
an island
an island
a region
a region
a country
a country
a continent
Think about the following features: bodies of water, climate, topography, and types of wildlife. What do the features have in common?(1 point)
Responses
They are all water-oriented features that could define a particular region.
They are all water-oriented features that could define a particular region.
They are human-made features that could define a particular region.
They are human-made features that could define a particular region.
They are natural features that could define a particular region.
They are natural features that could define a particular region.
They are natural features that must be present to define a particular region.