Question

Activities and Exercis
estion Time
swer the following questions.
Describe the composition of a sample of clean air.​

Answer 1

Answer:

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Answer 2

Explanation:

Here are 10 gases that make up clean air: In order of highest to lowest concentration they are Nitrogen, Oxygen, Argon, Carbon dioxide, Neon, Helium, Methane (CH4), Krypton, Hydrogen, and Xenon. ... 8 out of 10 atoms (or molecules) of air are made of nitrogen.Mar 4, 2013

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