Micro-organisms act upon the dead plants to produce
Micro-organisms convert dead plants and leaves into humus, which is rich in nutrients.
Humus in soil provides necessary minerals for plant growth.
(i) sand
(ii) mushrooms
(iii) humus
(iv) wood
Question 13 Microorganisms act upon the dead plants to produce (i) sand (ii) mushrooms (iii) humus (iv) wood
Which of the following micro-organisms can cause diseases in plants?
Intercropping
Mixed cropping
Crop rotation
None of these