Question

The two forms of oxygen found in the atmosphere are :

• A. water and ozone
• B. water and oxygen
• C. ozone and oxygen
• D. water and carbon dioxide

Answer 1

The correct option is C

ozone and oxygen

The correct answer is option C

Explanation of the correct answer:

1. Ozone is formed by the reaction and combustion of three oxygen atoms.
2. Oxygen exists in the diatomic form ad a free gas in the atmosphere and in the molecular, dissolved form in different forms of precipitation.

Explanation of the incorrect option:

Option A:

water and ozone: these are also present in the atmosphere but water is not the form of oxygen since it has both hydrogen and oxygen in it.

Option B:

water and oxygen: these are present in the atmosphere but water isn't in a pure form of oxygen.

Option D:

Water and Carbon dioxide: these are present in the atmosphere but they are both combination compounds containing both carbon and hydrogen in addition to oxygen.

The final answer is ozone and oxygen.