Question

2(ii). Carbon Dioxide constitute about 0.03% of the atmosphere
a. By volume
b. By weight
C. By mass
d. None of these​

Answer 1

Answer:

None of these

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Answer 2

Answer:

a. By volume

Explanation:

The air in our atmosphere is composed of molecules of different gases. The most common gases nitrogen (78%), oxygen (about 21%), argon (almost 1%) and carbon dioxide (0.03%). Other molecules are present in the atmosphere as well, but in very small quantities. Composition of air is measured in percent by volume, at sea level at 15C and 101325 Pa.

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