The process of loosening and turning of soil is called

Which of the following is not true for fertilizers?

Given below are statements about the harmful effects of weeds on crop plants.

(i) they interfere in harvesting.

(ii) they help crops plants to grow healthy.

(iii) they complete with crop plants for water, nutrients, space and light.

(iv) they affect plant growth.

Choose the correct combination of statements.

The monsoon season in our country is during the months

The system of irrigation where in water is supplied drop by drop near the roots of plants is called