Answer the following questions.

Explain the difference between preventive and curative spraying of chemicals.

Answer the following questions.

What are the activities at the post-sowing stage of tilling?

Answer the following questions.

Explain the difference between 'thinning the crop' and 'weeding'.

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?

Match the following.