Question

Which of the following is not true for fertilizers?

• A. They increase the yield.
• B. Their excessive use disturbs the balance of nutrients in the soil.
• C. They are generally used in small quantity
• D. They are environment-friendly

Answer 1

The correct option is D

They are environment-friendly

The correct option is D.

The explanation for the correct option:

1. Fertilizer is a chemical product used in plant crops to increase their productivity.
2. Fertilizers have some essential nutrients like nitrogen, potassium, and phosphorus required for plant crops.
3. They are non-biodegradable as it increases at each trophic level.
4. Fertilizers add nutrients, increases yields, and ensure the right balance of nutrients in the soil.

The explanation for the incorrect options:

Option A

Fertilizers have essential nutrients which increase the yield of the crops.

Option B

Excessive use of fertilizers decreases the fertility of the soil.

Option C

Fertilizers are used in small quantity which has nutrients like nitrogen, potassium, and phosphorous.

Final answer: “They are environment-friendly” is an incorrect statement for fertilizers.