Question

The nutrient cycle that has largest reservoir in the atmosphere is

• A. Carbon cycle
• B. Nitrogen cycle
• C. Potassium cycle
• D. Phosphorus cycle
• E. Water cycle

Answer 1

The correct option is B Nitrogen cycle

Nitrogen is the gas which is maximally present in the atmosphere. Up to 78% of the atmosphere contains Nitrogen gas. The second most abundant is oxygen which consists of 21% of the atmosphere. All other gases are present less than 1%.

So the correct answer is 'Nitrogen cycle'.