What is the 'earth's atmosphere' made up of?

1 Answer

Answer:

#78%# Nitrogen | #21%# Oxygen | #0.9%# Argon | #0.04%# #"CO"_2# | #0.06%# Other Gases

Explanation:

The main gases in our atmosphere are nitrogen & oxygen.

About four-fifths (#80%#) of the atmosphere is nitrogen & one-fifth (#20%#) is oxygen.

The Evolution of Plants removed much of the early Earth's atmosphere's #"CO"_2#, not to mention the introduction of more oxygen removed other harmful gases such as ammonia & methane by reacting with it.

#CH_4 + 2O_ 2 rarr CO_2 + 2H_2O#

#4NH_3 + 3O_2 rarr 2N_2 + 6H_2O#

This made more #"CO"_2# available for plants, created more water to support animal life & got rid of poisonous gases which killed off animal life, without plants, we wouldn't be here.

Give a tree a hug.

Hopefully this helps you.