Disadvantages of Using Fertilizers

Q. Identify the disadvantage of fertilizer

1. They are easy to transport, store and handle
2. They provide quick replenishment of plant nutrients in the soil
3. Excessive use of fertilizers damages the plants and reduces soil fertility.
4. Required in a lesser quantity

Q.

Differentiate between the following.

Fertilizers and Insecticides

Q.

The full form of DDT is_______.

1. dichlorodiphenyltrichloroethane

2. diphenyldichlorotrichloroetane

3. dichlorodiphenyltetrachloroethane

4. dichlorodiphenyltrichloromethane.

Q. Which of the following is/are disadvantage(s) of using chemical pesticides?

1. It gets accumulated in animals.
2. The pests are destroyed completely.
3. It kills the beneficial microorganisms.
4. It leads to environmental and health issues.