2. Which gas is NOT an efficient greenhouse gas?
A. Helium
B. Methane
C. Ca...
Chemistry, 20.10.2020 02:01 asdf334asdf334
2. Which gas is NOT an efficient greenhouse gas?
A. Helium
B. Methane
C. Carbon dioxide
D. Water vapor
Answers: 3
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The difference between the atomic number of an element and the element’s atomic mass is the number of ions.
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