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HEI

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.  
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show A change in global or regional climate patterns,  
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show Sunlight, wind, rain, tides, waves and geothermal heat.  
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Green resources   show
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Non-renewable resources   show
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show Nonrenewable resources in that their use is not sustainable because their formation takes billions of years.  
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Acid rain   show
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show The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects.  
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show Become adjusted to new conditions.  
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show Rely on.  
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show Make partial or minor changes, typically so as to improve it or to make it less extreme  
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Natural disaster   show
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show Deforestation is the clearing of trees, transforming a forest into cleared land.  
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show The action of renewing forest cover (as by natural seeding or by the artificial planting of seeds.  
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Positive   show
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show Consisting in or characterized by the absence rather than the presence of distinguishing features.  
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