-
The concept of relative dating that refers to the process of matching similar fossils from different locations is correlation.
-
The difference between the law of inclusion and the law of crosscutting in relative dating of rocks and fossils is: Intruding objects are younger in the law of inclusion. (Note: The other statements regarding the law of inclusion being older and the law of crosscutting only applying to bottom layers refer to a misunderstanding; the intruding objects are younger in the law of crosscutting.)
-
The conclusion statement that is correct is: Both areas were covered by seawater at some time.
-
The law that describes a layer of the Grand Canyon that is older than the layer above it is the law of superposition.
Which concept of relative dating refers to the process of matching similar fossils from different locations? (1 point)
Responses
uniformitarianism
uniformitarianism
law of inclusion
law of inclusion
law of crosscutting
law of crosscutting
correlation
Which describes the difference between the law of inclusion and the law of crosscutting in relative dating of rocks and fossils?(1 point)
Responses
Bottom layers of rock are younger only in the law of crosscutting.
Bottom layers of rock are younger only in the law of crosscutting.
Intruding objects are older in the law of inclusion.
Intruding objects are older in the law of inclusion.
Intruding objects are younger in the law of inclusion.
Intruding objects are younger in the law of inclusion.
Bottom layers of rock are older only in the law of crosscutting.
Use this sentence: A scientist finds fossils of the same marine animal in two distant locations.
Which conclusion statement is correct?
(1 point)
Responses
Water in both areas dried out at the same time.
Water in both areas dried out at the same time.
The fossils closest to Earth’s surface are the oldest.
The fossils closest to Earth’s surface are the oldest.
All rocks in both areas are the same age.
All rocks in both areas are the same age.
Both areas were covered by seawater at some time.
Which law describes a layer of the Grand Canyon that is older than the layer above it?(1 point)
Responses
law of superposition
law of superposition
law of uniformitarianism
law of uniformitarianism
law of inclusion
law of inclusion
law of crosscutting
11 answers
When will a fossil be used in finding the absolute age of rocks?(1 point)
Responses
if it existed for a long period of time and in a wide area
if it existed for a long period of time and in a wide area
if it existed for a limited period of time and in a small area
if it existed for a limited period of time and in a small area
if it existed for a long period of time and in a small area
if it existed for a long period of time and in a small area
if it existed for a limited period of time and in a wide area
Which quantity helps determine the absolute age of rocks and fossils?(1 point)
Responses
the difference between the number of protons and neutrons in carbon-14
the difference between the number of protons and neutrons in carbon-14
the ratio of protons to neutrons in carbon-14
the ratio of protons to neutrons in carbon-14
the difference between the amounts of carbon-12 and carbon-14
the difference between the amounts of carbon-12 and carbon-14
the ratio of carbon-12 to carbon-14
Use this paragraph: The half-life of carbon-14 is 5,700 years. A certain sample of wood has 20 grams of carbon-14 when it is alive.
How many grams of carbon will it have after 5,700 years?
(1 point)
Responses
2 grams
2 grams
5 grams
5 grams
40 grams
40 grams
10 grams
Which statement best describes why most individual organisms never fossilized?(1 point)
Responses
Conditions for fossilization are rare.
Conditions for fossilization are rare.
Only organisms with hard parts fossilize.
Only organisms with hard parts fossilize.
Chemicals that fossilize organisms are rare.
Chemicals that fossilize organisms are rare.
Only organisms that lived in the ocean fossilize.
Responses
if it existed for a long period of time and in a wide area
if it existed for a long period of time and in a wide area
if it existed for a limited period of time and in a small area
if it existed for a limited period of time and in a small area
if it existed for a long period of time and in a small area
if it existed for a long period of time and in a small area
if it existed for a limited period of time and in a wide area
Which quantity helps determine the absolute age of rocks and fossils?(1 point)
Responses
the difference between the number of protons and neutrons in carbon-14
the difference between the number of protons and neutrons in carbon-14
the ratio of protons to neutrons in carbon-14
the ratio of protons to neutrons in carbon-14
the difference between the amounts of carbon-12 and carbon-14
the difference between the amounts of carbon-12 and carbon-14
the ratio of carbon-12 to carbon-14
Use this paragraph: The half-life of carbon-14 is 5,700 years. A certain sample of wood has 20 grams of carbon-14 when it is alive.
How many grams of carbon will it have after 5,700 years?
(1 point)
Responses
2 grams
2 grams
5 grams
5 grams
40 grams
40 grams
10 grams
Which statement best describes why most individual organisms never fossilized?(1 point)
Responses
Conditions for fossilization are rare.
Conditions for fossilization are rare.
Only organisms with hard parts fossilize.
Only organisms with hard parts fossilize.
Chemicals that fossilize organisms are rare.
Chemicals that fossilize organisms are rare.
Only organisms that lived in the ocean fossilize.
-
A fossil will be used in finding the absolute age of rocks if it existed for a limited period of time and in a wide area. (This allows for more precise dating as it helps to establish a specific time frame for the rock layer.)
-
The quantity that helps determine the absolute age of rocks and fossils is the ratio of carbon-12 to carbon-14. (This ratio is used in radiocarbon dating.)
-
After 5,700 years, the sample of wood will have 10 grams of carbon-14 left. (Since the half-life is 5,700 years, half of the original 20 grams will remain after one half-life.)
-
The statement that best describes why most individual organisms never fossilized is: Conditions for fossilization are rare. (Fossilization requires specific conditions that do not occur frequently.)
What was unknown to scientists during Wegener’s time?(1 point)
Responses
Earth’s crust is made of plates that move.
Earth’s crust is made of plates that move.
Fossils were found in many places.
Fossils were found in many places.
The coasts of some continents fit together.
The coasts of some continents fit together.
Mountain ranges of some continents lined up.
Which continents have coastlines and mountain ranges that match up?(1 point)
Responses
Africa and North America
Africa and North America
Africa and South America
Africa and South America
North America and South America
North America and South America
Asia and Antarctica
Asia and Antarctica
What did scientists observe in the ocean floor which indicates that the Pacific Ocean is becoming smaller?(1 point)
Responses
continental drift
continental drift
spreading
spreading
subduction
subduction
plates floating on the mantle
What is the name of a supercontinent that was once made up of all of Earth’s current continents?(1 point)
Responses
Eurasia
Eurasia
Gondwana
Gondwana
Laurasia
Laurasia
Pangaea
Responses
Earth’s crust is made of plates that move.
Earth’s crust is made of plates that move.
Fossils were found in many places.
Fossils were found in many places.
The coasts of some continents fit together.
The coasts of some continents fit together.
Mountain ranges of some continents lined up.
Which continents have coastlines and mountain ranges that match up?(1 point)
Responses
Africa and North America
Africa and North America
Africa and South America
Africa and South America
North America and South America
North America and South America
Asia and Antarctica
Asia and Antarctica
What did scientists observe in the ocean floor which indicates that the Pacific Ocean is becoming smaller?(1 point)
Responses
continental drift
continental drift
spreading
spreading
subduction
subduction
plates floating on the mantle
What is the name of a supercontinent that was once made up of all of Earth’s current continents?(1 point)
Responses
Eurasia
Eurasia
Gondwana
Gondwana
Laurasia
Laurasia
Pangaea
-
What was unknown to scientists during Wegener’s time?
Earth’s crust is made of plates that move. -
Which continents have coastlines and mountain ranges that match up?
Africa and South America. -
What did scientists observe in the ocean floor which indicates that the Pacific Ocean is becoming smaller?
Subduction. -
What is the name of a supercontinent that was once made up of all of Earth’s current continents?
Pangaea.
Which data is used to make a sonar map of the ocean floor?(1 point)
Responses
the time it takes an underwater vehicle to reach the ocean floor
the time it takes an underwater vehicle to reach the ocean floor
the amount of light that reaches the ocean floor
the amount of light that reaches the ocean floor
the time it takes for a pulse to bounce from the ocean floor
the time it takes for a pulse to bounce from the ocean floor
the amount of spreading that occurs on the ocean floor
Which describes how the Atlantic Ocean and the Pacific Ocean changes over time?(1 point)
Responses
Both the Atlantic Ocean and the Pacific Ocean are getting smaller.
Both the Atlantic Ocean and the Pacific Ocean are getting smaller.
The Atlantic Ocean is getting larger, while the Pacific Ocean is getting smaller.
The Atlantic Ocean is getting larger, while the Pacific Ocean is getting smaller.
The Atlantic Ocean is growing smaller, while the Pacific Ocean is getting larger.
The Atlantic Ocean is growing smaller, while the Pacific Ocean is getting larger.
Both the Atlantic Ocean and the Pacific Ocean are getting larger.
Which pattern describes the ages of ocean rocks based on core samples from the ocean floor?(1 point)
Responses
Younger rocks are colder and are located closer to subduction zones.
Younger rocks are colder and are located closer to subduction zones.
Younger rocks are warmer and are located closer to mid-ocean ridges.
Younger rocks are warmer and are located closer to mid-ocean ridges.
Younger rocks are warmer and are located closer to subduction zones.
Younger rocks are warmer and are located closer to subduction zones.
Younger rocks are colder and are located closer to mid-ocean ridges.
What information is revealed by magnetism on rocks?(1 point)
Responses
luster
luster
mass
mass
age
age
minerals
Responses
the time it takes an underwater vehicle to reach the ocean floor
the time it takes an underwater vehicle to reach the ocean floor
the amount of light that reaches the ocean floor
the amount of light that reaches the ocean floor
the time it takes for a pulse to bounce from the ocean floor
the time it takes for a pulse to bounce from the ocean floor
the amount of spreading that occurs on the ocean floor
Which describes how the Atlantic Ocean and the Pacific Ocean changes over time?(1 point)
Responses
Both the Atlantic Ocean and the Pacific Ocean are getting smaller.
Both the Atlantic Ocean and the Pacific Ocean are getting smaller.
The Atlantic Ocean is getting larger, while the Pacific Ocean is getting smaller.
The Atlantic Ocean is getting larger, while the Pacific Ocean is getting smaller.
The Atlantic Ocean is growing smaller, while the Pacific Ocean is getting larger.
The Atlantic Ocean is growing smaller, while the Pacific Ocean is getting larger.
Both the Atlantic Ocean and the Pacific Ocean are getting larger.
Which pattern describes the ages of ocean rocks based on core samples from the ocean floor?(1 point)
Responses
Younger rocks are colder and are located closer to subduction zones.
Younger rocks are colder and are located closer to subduction zones.
Younger rocks are warmer and are located closer to mid-ocean ridges.
Younger rocks are warmer and are located closer to mid-ocean ridges.
Younger rocks are warmer and are located closer to subduction zones.
Younger rocks are warmer and are located closer to subduction zones.
Younger rocks are colder and are located closer to mid-ocean ridges.
What information is revealed by magnetism on rocks?(1 point)
Responses
luster
luster
mass
mass
age
age
minerals
-
The data used to make a sonar map of the ocean floor is the time it takes for a pulse to bounce from the ocean floor.
-
The description of how the Atlantic Ocean and the Pacific Ocean changes over time is: The Atlantic Ocean is getting larger, while the Pacific Ocean is getting smaller.
-
The pattern that describes the ages of ocean rocks based on core samples from the ocean floor is: Younger rocks are warmer and are located closer to mid-ocean ridges.
-
The information revealed by magnetism on rocks is: age. (Magnetic patterns in rocks can indicate the age based on the history of Earth's magnetic field reversals.)
How did advancements during the Gupta period transform mathematics?
(1 point)
Responses
They invented algebra.
They invented algebra.
They created the concepts of square numbers and square roots.
They created the concepts of square numbers and square roots.
They developed a decimal system with a numeral for zero.
They developed a decimal system with a numeral for zero.
They made progress in metallurgy.
Under whose reign did the Gupta empire reach its greatest size?
(1 point)
Responses
Chandragupta Maurya
Chandragupta Maurya
Chandra Gupta I
Chandra Gupta I
Samudra Gupta
Samudra Gupta
Chandra Gupta II
Which game was invented in India?
(1 point)
Responses
solitaire
solitaire
mahjongg
mahjongg
chess
chess
checkers
(1 point)
Responses
They invented algebra.
They invented algebra.
They created the concepts of square numbers and square roots.
They created the concepts of square numbers and square roots.
They developed a decimal system with a numeral for zero.
They developed a decimal system with a numeral for zero.
They made progress in metallurgy.
Under whose reign did the Gupta empire reach its greatest size?
(1 point)
Responses
Chandragupta Maurya
Chandragupta Maurya
Chandra Gupta I
Chandra Gupta I
Samudra Gupta
Samudra Gupta
Chandra Gupta II
Which game was invented in India?
(1 point)
Responses
solitaire
solitaire
mahjongg
mahjongg
chess
chess
checkers
-
Advancements during the Gupta period transformed mathematics in that they developed a decimal system with a numeral for zero.
-
The Gupta empire reached its greatest size under the reign of Chandra Gupta II.
-
The game that was invented in India is chess.
What is the inverse operation needed to solve for x?
45 = x - 12
(1 point)
Responses
Addition
Addition
Multiplication
Multiplication
Subtraction
Subtraction
Division
Which of the following should be done to both sides of the equation x + 11 = -17 to solve the value of x? (1 point)
Responses
subtract 11
subtract 11
subtract 17
subtract 17
add 17
add 17
add 11
add 11
What number should both sides of the equation -8m = 16 be divided by to solve for the value of m?
Do not solve for m. Enter only a number for your response.
(1 point)
What is the first step in solving this equation:
13x=−9
(1 point)
Responses
Multiply each side by 1/3
Multiply each side by 1/3
Divide each side by 1/3
Divide each side by 1/3
Divide each side by 3
Divide each side by 3
Multiply each side by -9
Solve the equation using inverse operations.
13x=−9
(1 point)
x=
Solve using inverse operations.
n4=12
(1 point)
n =
Reagan is 3.5 inches shorter than Cassidy. If Reagan is 39 inches tall, which equation could you use to find Cassidy's height? (1 point)
Responses
3.5 - c = 39
3.5 - c = 39
39 - c = 3.5
39 - c = 3.5
c - 3.5 = 39
c - 3.5 = 39
39 - 3.5 = c
39 - 3.5 = c
If 3c = 12, what is the value of 5c?
Part A: Solve for 3c = 12
(1 point)
c =
Question 2
Part B: Using the value of c, evaluate 5c? (1 point)
5c =
45 = x - 12
(1 point)
Responses
Addition
Addition
Multiplication
Multiplication
Subtraction
Subtraction
Division
Which of the following should be done to both sides of the equation x + 11 = -17 to solve the value of x? (1 point)
Responses
subtract 11
subtract 11
subtract 17
subtract 17
add 17
add 17
add 11
add 11
What number should both sides of the equation -8m = 16 be divided by to solve for the value of m?
Do not solve for m. Enter only a number for your response.
(1 point)
What is the first step in solving this equation:
13x=−9
(1 point)
Responses
Multiply each side by 1/3
Multiply each side by 1/3
Divide each side by 1/3
Divide each side by 1/3
Divide each side by 3
Divide each side by 3
Multiply each side by -9
Solve the equation using inverse operations.
13x=−9
(1 point)
x=
Solve using inverse operations.
n4=12
(1 point)
n =
Reagan is 3.5 inches shorter than Cassidy. If Reagan is 39 inches tall, which equation could you use to find Cassidy's height? (1 point)
Responses
3.5 - c = 39
3.5 - c = 39
39 - c = 3.5
39 - c = 3.5
c - 3.5 = 39
c - 3.5 = 39
39 - 3.5 = c
39 - 3.5 = c
If 3c = 12, what is the value of 5c?
Part A: Solve for 3c = 12
(1 point)
c =
Question 2
Part B: Using the value of c, evaluate 5c? (1 point)
5c =
-
What is the inverse operation needed to solve for \( x \) in the equation \( 45 = x - 12 \)?
Addition (to isolate \( x \), you would add \( 12 \) to both sides). -
Which of the following should be done to both sides of the equation \( x + 11 = -17 \) to solve for the value of \( x \)?
Subtract 11 (you want to isolate \( x \)). -
What number should both sides of the equation \( -8m = 16 \) be divided by to solve for the value of \( m \)?
-8 (dividing both sides by \(-8\) isolates \( m \)). -
What is the first step in solving the equation \( 13x = -9 \)?
Divide each side by 13 (this would isolate \( x \), however, the option seems to be missing but the operation should be dividing by 13). -
Solve the equation \( 13x = -9 \) using inverse operations:
\( x = -\frac{9}{13} \). -
Solve using inverse operations for \( n4 = 12 \):
\( n = 3 \) (dividing both sides by \( 4 \)). -
Reagan is 3.5 inches shorter than Cassidy. If Reagan is 39 inches tall, which equation could you use to find Cassidy's height?
\( c - 3.5 = 39 \) (this correctly represents that Cassidy’s height \( c \) is 3.5 inches taller than Reagan). -
If \( 3c = 12 \), what is the value of \( 5c \)?
Part A: Solve for \( 3c = 12 \):
\( c = 4 \) (divide both sides by \( 3 \)).Part B: Using the value of \( c \), evaluate \( 5c \):
\( 5c = 20 \) (just multiply \( 5 \times 4 \)).