Which of the following is not true for fertilizers?

Read the statements given below.

(i) seeds require moisture for germination

(ii) plants can absorb nutrients mostly in dissolved form

(iii) irrigation protects crops from both frost and hot air currents

(iv) irrigation improves soil texture

Choose the combination of statements which indicate the need to irrigate crops.

Which of the following tools would a farmer use to remove weeds from the field?

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 process of loosening and turning of soil is called