The-Living-World Question 682
The organisms of earth are well protected by the layer of a gas which covers the earth. It is known as
Options:
A) Nitrogen is a chemical element with the symbol N and atomic number 7. It is a colorless, odorless, and tasteless gas that makes up about 78% of Earth’s atmosphere. Nitrogen is essential for life and is a key component of proteins and nucleic acids. It exists in various forms, including diatomic molecules (N₂), and is used in fertilizers, explosives, and medical applications.
B) Ozone Layer
C) $ CO_2 $
D) Dust
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Answer:
Correct Answer: B
BETA
