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16 September 2016, 14:05
Does the mass of the earth change when there are more people on the planet?
Name: Charles, Stockport.
Qualification: Chemistry A level
Answer: It doesn’t. You can’t create or destroy matter other than with a nuclear reaction. So everything else is chemical reaction such as humans and animals that are made out of carbon, etc. This had to come from somewhere, so the earths the overall mass remains the same.