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
sea level is rising
Which energy source releases the most carbon dioxide?(1 point)
Responses
wind
wind
coal
coal
hydroelectric
hydroelectric
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 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.
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 crops.
Many people can live in small spaces, such as high rises in cities.
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.
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
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