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Human environment

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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Term
Definition
global warming   refers to an unequivocal and continuing rise in the average temperature of Earth's climate system  
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greenhouse gases   gas in an atmosphere that absorbs and emits radiation within the thermal infrared range  
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greenhouse effect   process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases  
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acid rain   rain or any other form of precipitation that is unusually acidic  
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pollution   introduction of contaminants into the natural environment that cause adverse change  
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adapt   make (something) suitable for a new use or purpose; modify.  
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depend   be controlled or determined by.  
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modify   make partial or minor changes to (something)  
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natural disaster   major adverse event resulting from natural process  
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deforestation   the state of being clear of trees  
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