Assertion: The process of nitrification involves the decomposition of proteins of dead plants and animals, and nitrogenous wastes like urea. Uric acid. Etc. of animals to ammonia.
Reason: Nitrogen cycle is a sedimentary cycle.

Answer

D

Explanation

The process of decomposition of proteins of dead plants and animals, and nitrogenous wastes like urea, uric acid etc., of animals to ammonia is referred to as ammonification. Ammonification is a part of nitrogen cycle. Nitrogen cycle is a type of gaseous nutrient cycle.