People and the Environment

Reforestation is the cutting of large areas of forests for human activities.

• true

• false

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According to the graph, in the United States how much land is used by cities compared to other land uses?

• Most land is used by cities.

• Cities use very little land compared to any other category.

• Cities use half as much land as agriculture.

• Cities use one third as much of the land as forests.

Reduced vegetation on Earth results in _____.

• more carbon dioxide in the atmosphere

• increased habitats

• less room for humans

• more oxygen in the atmosphere

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Of the following, which helps conserve natural resources?

• using a cloth shopping bag instead of a paper bag

• riding your bike on short trips around town

• planting trees in your front yard

• all of the options help conserve natural resources

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One cause of ____ is attributed to deforestation.

• precipitation

• thunderstorms

• climate change

• clouds

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Is defined as able to last or continue for a long time

• extinction

• replenish

• erode  

• sustainable

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Which atmospheric gas contributes to climate change?

• oxygen

• ozone

• carbon dioxide

• nitrogen

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Is defined as a a period of dry weather

• drought

• impact

• erode

• sustainable

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Is when weather slowly destroys rock or soil

• extinction

• erosion

•  impact

• replenish

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Is when when all of the animals or plants of a species dies out

• extinction

• erosion

•  impact

• replenish

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