Weeds are unwanted plants that grow among the crop plants, however
can not say
they do compete with the crop plants for nutrients or light.
they sometimes compete with the crop plants for nutrients or light.
they do not compete with the crop plants for nutrients or light
Question 8 Given below are statements about the harmful effects of weeds on crop plants. (i) They interfere in harvesting. (ii) They help crop plants to grow healthily. (iii) They compete with crop plants for water, nutrients, space and light. (iv) They affect plant growth. Choose the correct combination of statements. (a) i, iii, iv (b) iii only (c) iii, iv (d) i, ii, iii, iv
Weeds do not compete with crop plants for which of the following?
Question 6 Weeds affect the crop plants by (a) killing of plants in field before they grow (b) dominating the plants to grow (c) competing for various resources of crops (plants) causing low availability of nutrients (d) all of the above.