Match the following.

Answer the following questions.

Explain the difference between preventive and curative spraying of chemicals.

Answer the following questions.

What is the method used for sowing each of the following crops?

wheat, rice, sugarcane, pumpkin, jowar, cotton. How many methods are there of sowing seeds?

Give scientific reasons.

How deep the land should be ploughed depends upon the specific conditions.

Give scientific reasons.

The importance of a sickle cannot be judged from its small size.