Assertion : Plants absorb nitrogen in the form of nitrates only.
Reason : Nitrogen is the most critical element.

Options

A. Both Assertion and Reason are true and Reason is the correct explanation of assertion
B. Both assertion and Reason are true, but reason is not the correct explanation of assertion
C. Assertion is true, but reason is false
D. Assertion is false, but reason is true

Answer

D

Explanation

Nitrogen is themost critical element as it is a component of amino acids, proteins, hormones, chlorophyll, etc. plants absorb nitrogen in the form of `NO_(3)^(-)` (nitrate) or `NH_(4)^(+)` (ammonium ion) and also as `NO_(2)^(-)` (nitrite).