What air pollutant that is released due yo human activity?

A) carbon dioxide

B) nitrogen dioxide

C) toxic dioxide

D) all of these are air pollutants caused by humans

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Which of the following is the longest distance from Earth? A. the distance to the nearest star beyond the Sun B. the distance to the edge of the Universe C. the distance to the next galaxy D. the distance to the edge of our solar system

How can carbon be considered a pollutant when it is a natural component of air

Which will experience the greater effective nuclear charge, the electrons in the n=3 shell in Ar or the n=3 shell in Kr? Which will experience the greater effective nuclear charge, the electrons in the shell in or the shell in?

Why do most changes to DNA have no effect at all

What is the dynamo effect

Color blindness is an example of the following

What is the main function of lipids in biological organisms?

Which tissue is affected by polio?

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