Question

A *gaseous non-metal* that makes up *78% of earth's atmosphere.* Its compounds are important components of *proteins, fertilizers, and many explosives.*

Answer 1

The gas being referred to is nitrogen (N₂) which makes up about 78% of Earth's atmosphere. Nitrogen is a gaseous non-metal and its compounds are important components of proteins, fertilizers, and many explosives.

Step-by-step explanation:

The subject of this question is Chemistry.

The gas being referred to is nitrogen (N₂). Nitrogen makes up about 78% of Earth's atmosphere. It is a gaseous non-metal and its compounds are important components of proteins, fertilizers, and many explosives.

For example, nitrogen is an essential element in amino acids, which are the building blocks of proteins. It is also a key component in the synthesis of ammonia, which is used in fertilizers. Additionally, nitrogen is a major component in many explosives, such as nitroglycerin and TNT.