Human Impacts and Global Warming Test

Which practice would most likely deplete a nonrenewable natural resource?

• harvesting trees on a tree farm

• restricting water usage during a period of water shortage

• burning coal to generate electricity in a power plant

• building a dam to use water to generate electricity 

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The following graph tells us what?

• Sea Levels are decreasing.

• Sea Levels are rising.

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One reason why people should be aware of the impact of their actions on the environment is that  

• ecosystems are never able to recover once they have been adversely affected

• the depletion of finite resources cannot be reversed

• there is a decreased need for new technology

• there is a decreased in work

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Do we need greenhouse gases on Earth?

• Yes - they keep the Earth warm

• Yes - they keep all the gases on our planet

• No - they only cause terrible climate change

• No - they only block some of the Sun's rays

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Deforestation of areas considered to be rich sources of genetic material could limit future agricultural and medical advances due to  

• the improved quality of the atmosphere

• the maintenance of dynamic equilibrium

• an increase in the rate of evolutionary change

• the loss of biodiversity

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One way that humans could have a positive impact on local environments is to

• generate waste products as result of technological advances

• increase planting large areas of one crop

• use resources that are renewable

• increase the use of pesticides

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A greenhouse is a building where plants are cultivated. Because a greenhouse traps some of the incoming solar radiation, the air inside is generally warmer than the air outside. Which gas in Earth’s atmosphere acts like this greenhouse?

• Argon

• Oxygen

• Nitrogen

• Carbon Dioxide

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Suppose most of the water, carbon dioxide, and methane gas were taken out of Earth's atmosphere.  How would this most likely affect Earth's temperature?

• The greenhouse effect would be stronger, so Earth's temperature would increase.

• The greenhouse effect would be stronger, so Earth's temperature would decrease.

• The greenhouse effect would be weaker, so Earth's temperature would increase.

• The greenhouse effect would be weaker, so Earth's temperature would decrease.

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Which activity would reduce human sources of greenhouse gases?

• increasing the size of livestock herds

• monitoring worldwide volcanic activity

• using wind energy to generate electricity

• researching ways to add methane to the atmosphere

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Which of the following sets of evidence supports global warming?

• CO2 levels rising

• Sea Levels rising

• Glacier size decreasing

• All of the Above

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