A bar magnet has a circular magnetic field going around it, true or false?

41 answers

True. A bar magnet has a magnetic field that goes around it in a circular pattern, also known as a magnetic field line.
Effective communication ultimately depends on which of the following?(1 point)
Responses

having a particular profession
having a particular profession

the audience
the audience

being in a large group
being in a large group

friends and family
friends and family
the audience
Use the graph to answer the question.

The vertical axis is labeled millions and ranges from 0 to 900 in increments of 100. The horizontal axis is labeled year and lists dates from 1700 to 2000 in 100-year increments. The line for population starts at 90 million for 1700 and with a slow growth rate reaches to 120 million by 1900. The line then rises with a high growth rate and reaches beyond 600 million by 2000. The line for steel consumption starts from 0 in 1860 and reaches 20 million by 1900. The line then rises with a high growth rate to reach beyond 800 million by 2000. The values used in the description are approximate.

What led to the increase in steel consumption seen on the graph?

(1 point)
Responses

Fossil fuels that became popular depends on steel production.
Fossil fuels that became popular depends on steel production.

Steel consumption increased when more people started to use computers.
Steel consumption increased when more people started to use computers.

More people started mining steel that are sold outside of the country.
More people started mining steel that are sold outside of the country.

More building construction is needed to provide for the needs of people.
More building construction is needed to provide for the needs of people.
Which can be excluded from the list of environmental impacts of mining?(1 point)
Responses

water is polluted
water is polluted

harmful gases are released
harmful gases are released

sea level is rising
sea level is rising

habitats are destroyed
Sea level is rising.
Which energy source releases the most carbon dioxide?(1 point)
Responses

wind
wind

coal
coal

hydroelectric
hydroelectric

solar
solar
Coal.
What happens to infrared radiation released by the Earth if there is an increased level of carbon dioxide in the atmosphere?(1 point)
Responses

It is absorbed and heats the atmosphere.
It is absorbed and heats the atmosphere.

It is converted to carbon dioxide.
It is converted to carbon dioxide.

It is converted to solar energy.
It is converted to solar energy.

It escapes and cools the atmosphere.
It escapes and cools the atmosphere.
It is absorbed and heats the atmosphere.
With such huge increases in population, why has there not been a direct and equivalent increase in urban development (i.e., why is it such a small proportion of habitable land use)?(1 point)
Responses

There is not enough habitable land left for further urban development.
There is not enough habitable land left for further urban development.

Many people can live in small spaces, such as high rises in cities.
Many people can live in small spaces, such as high rises in cities.

People want to live close to where they work, which is usually the city or suburbs.
People want to live close to where they work, which is usually the city or suburbs.

Habitable land is already being used for livestock and
agriculture.
With such huge increases in population, why has there not been a direct and equivalent increase in urban development (i.e., why is it such a small proportion of habitable land use)?(1 point)
Responses

There is not enough habitable land left for further urban development.
There is not enough habitable land left for further urban development.

Many people can live in small spaces, such as high rises in cities.
Many people can live in small spaces, such as high rises in cities.

People want to live close to where they work, which is usually the city or suburbs.
People want to live close to where they work, which is usually the city or suburbs.

Habitable land is already being used for livestock and crops.
Habitable land is already being used for livestock and crops.
In almost all chains of consequences, what happens over time as the consequences unfold?(1 point)
Responses

Consequences spread through the area like a ripple effect, starting in the center and radiating outward.
Consequences spread through the area like a ripple effect, starting in the center and radiating outward.

Consequences travel from one type of habitat to another, until multiple habitats are affected.
Consequences travel from one type of habitat to another, until multiple habitats are affected.

Consequences decrease in size and scale and become short term.
Consequences decrease in size and scale and become short term.

Consequences increase in size and scale and become longer lasting.
Consequences increase in size and scale and become longer lasting.
Which change over time in Landsat maps would most likely be associated with contaminated water habitats nearby?(1 point)
Responses

gray areas replaced with light green areas
gray areas replaced with light green areas

increased size of gray areas
increased size of gray areas

increased size of dark green areas
increased size of dark green areas

green areas replaced with yellow areas
increased size of gray areas
Which human activity can result in the heat island effect?(1 point)
Responses

converting forest to agricultural land
converting forest to agricultural land

building green spaces and roof gardens
building green spaces and roof gardens

using habitable land for pasture land
using habitable land for pasture land

covering the ground with concrete and pavement
Covering the ground with concrete and pavement.
In three to five sentences, describe two impacts of obtaining nonrenewable resources and how these have been affected by increasing population.
The demand for nonrenewable resources such as coal and oil have led to increased rates of their extraction around the world. This has resulted in significant environmental impacts, including air, water, and soil pollution, as well as habitat destruction and biodiversity loss. With the increasing population, the consumption of nonrenewable resources has also risen, leading to additional impacts on the environment and climate change due to the release of greenhouse gases.
In order to expand agriculture and stimulate a sagging economy, the Brazilian government eased environmental laws which allowed large tracts of rainforest to be cut down or burned. In three to five sentences, construct a potential chain of consequences for what can happen as a result of this kind of deforestation. The chain does not have to be linear (i.e., five steps in a row), but can have several branches, one for each different potential consequence. Your chain should include at least four steps, including the original event.
1. The large-scale deforestation of the Amazon rainforest has resulted in a loss of the world's largest carbon sink, leading to a significant increase in carbon dioxide emissions by accelerating climate change.
2. The loss of biodiversity due to habitat destruction has meant that many species are on the brink of extinction, which will result in changes in ecosystem function and services such as pollination and seed dispersal.
3. The cleared land is often used for the expansion of cattle ranching or soybean production which are industries that contribute significantly to global greenhouse gas emissions.
4. The destruction of the rainforest can also lead to a decline in soil health and fertility, which can negatively impact the productivity of nearby agricultural land and the economic viability of local farmers.
In three to five sentences, describe how a person can reduce consumption of natural resources when drinking water. Assume that there is no change in the amount of water consumed and that the change is only in the way water is produced.
A person can reduce the consumption of natural resources when drinking water by choosing to drink tap water rather than bottled water, as bottled water requires a significant amount of energy and resources to produce and transport. Additionally, using a home water filtration system can prevent the need to purchase bottled water and reduce plastic waste. Finally, being mindful of water usage at home by turning off faucets when not in use and taking shorter showers can also reduce overall consumption and preserve freshwater resources.
Use the scenario to answer the question.

A city planner is designing a new apartment complex. The complex will have several apartment buildings as well as a paved parking area for residents.

In one to two sentences, describe two ways the planner can help minimize the human impact of the apartment complex on the environment.
The planner can help minimize the human impact of the apartment complex on the environment by incorporating green spaces such as gardens and rooftop plants to promote biodiversity and combat the urban heat island effect. Additionally, promoting sustainable transportation methods such as biking or carpooling can reduce greenhouse gas emissions and traffic congestion.
How did the German part of Charlemagne's kingdom change under the rule of Otto the Great?

A.
It was divided by several German dukes.

B.
It fell under the rule of the Byzantine empire.

C.
It was invaded by Anglo-Saxons.

D.
It was united as one empire.
D. It was united as one empire.
Which of the following contributed to the increase in power of the French monarchy during the 1100s? Select the two correct answers.

A.
The pope excommunicated the king.

B.
The pope became the French king.

C.
Taxes on trade made French kings wealthy.

D.
The king acquired large landholdings.

E.
The king lost control over the church.
C. Taxes on trade made French kings wealthy.
D. The king acquired large landholdings.
Why did Pope Gregory and Henry IV come into conflict?

A.
The pope claimed the authority to remove the emperor from the throne.

B.
The pope named a different emperor to replace Henry.

C.
Henry's land was seized by the pope.

D.
Henry tried to remove the pope from power.
A. The pope claimed the authority to remove the emperor from the throne.
Why did conflict arise between Henry II and Thomas Becket?

A.
Henry refused to appoint Becket as archbishop of England.

B.
Henry resisted the Norman invasion of England.

C.
Becket refused to recognize Henry as king.

D.
Becket supported the authority of the Church over the monarchy.
D. Becket supported the authority of the Church over the monarchy.
Drag and drop the events to arrange them from the event that came first to the event that occurred last.

The Normans invade England.

Germanic tribes settle in the east of Britain.

Anglo-Saxon kingdoms form.

England develops a strong monarchy.
Germanic tribes settle in the east of Britain. -> Anglo-Saxon kingdoms form. -> The Normans invade England. -> England develops a strong monarchy.
For which main reason did the Normans invade England?

A.
to capture the king's castle

B.
to benefit from England's wealth

C.
to establish religious freedom

D.
to eliminate Catholic influence
B. to benefit from England's wealth.