Question

Fertilizers supply this component that is essential for plant growth. Name the component.

• A. Carbon
• B. Calcium
• C. Nitrogen
• D. Potassium

Answer 1

The correct option is C Nitrogen

Nitrogen is one such element which is very important in plant growth because it is an essential part of the chlorophyll that is the site of photosynthesis.

Nitrogen is not found in the free state in the soil and the plants cannot take up nitrogen from the air directly so we add fertilizers that are rich in nitrogen and supply the plant with it.

Calcium and potassium are trace elements and are needed in small amounts and can be taken up from the soil. Plants take up carbon directly from the atmosphere.

So, the correct option is 'Nitrogen'