Answer:
Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases carbon dioxide gas to the atmosphere
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Answer:
An Error during S phase is corrected during the G2 Phase
 
        
                    
             
        
        
        
A sperm and an egg cell are each gametes. They fuse to become a zygote cell which develops into a fetus