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5 votes
Which of the two waste products from combustion has been known to cause

harmful changes to our environment?
a. CO2
b. H2O

User Sehe
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2 Answers

1 vote
The answer is CO2 because it causes temperatures to rise
User Russell Vea
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4 votes
CO2, since it is carbon dioxyde, which creates pollution, and harms the planet
User Esat Erkec
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