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unit 4

energy issues

TermDefinition
incentives (n) things that encourage you want to work hard or take action
layers (n) pieces of a material or substance that cover a surface or are between two other things
pursuing (v) making an effort to achieve a goal
renewable (adj) resources that are natural and always available, such wind and sunlight
shortages (n) conditions in which there is not enough of something
Popular Earth Science sets

 

 



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