Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Earth is the only planet known to have life.

Reason (R): Earth has an atmosphere which is a mixture of Oxygen, Nitrogen and Carbon dioxide.

In the light of the above statements, choose the most appropriate answer from the options given below:

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

Assertion (A) states that Earth is the only planet known to have life. This statement is correct because,  Earth is the only planet in the solar system and the universe where life is known to exist.

Reason (R) states that Earth has an atmosphere that is a mixture of oxygen, nitrogen, and carbon dioxide. This statement is also correct, but it does not directly explain why Earth is the only planet with life.

So, both statements are individually correct, but (R) is not the correct explanation of (A).