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Which can be excluded from the list of environmental impacts of mining?(1 point)
Responses

habitats are destroyed
habitats are destroyed

water is polluted
water is polluted

sea level is rising
sea level is rising

harmful gases are released
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Which energy source releases the most carbon dioxide?(1 point)
Responses

wind
wind

coal
coal

hydroelectric
hydroelectric

solar
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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 escapes and cools the atmosphere.
It escapes and cools the atmosphere.

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

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

It is converted to solar energy.
It is converted to solar energy.
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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.
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Impact of Humans Unit Test
6 of 126 of 12 Items



Question
In almost all chains of consequences, what happens over time as the consequences unfold?(1 point)
Responses

Consequences increase in size and scale and become longer lasting.
Consequences increase in size and scale and become longer lasting.

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

Consequences travel from one type of habitat to another, until multiple habitats are affected.
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Which change over time in Landsat maps would most likely be associated with contaminated water habitats nearby?(1 point)
Responses

increased size of gray areas
increased size of gray areas

green areas replaced with yellow areas
green areas replaced with yellow areas

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

increased size of dark green areas
increased size of dark green areas
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sea level is rising
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coal
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It is absorbed and heats the atmosphere.
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Many people can live in small spaces, such as high rises in cities.
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Consequences increase in size and scale and become longer lasting.
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increased size of gray areas