Question

which of the following forms an acid in the atmosphere? nitrogen oxides helium oxygen argon

Explanation:

Helium, oxygen, and argon are inert or stable gases that do not react to form acids in the atmosphere. Nitrogen oxides (e.g., NO, NO₂) react with water vapor, oxygen, etc., in the atmosphere to form nitric acid (a component of acid rain), so nitrogen oxides form an acid in the atmosphere.

Answer:

A. nitrogen oxides