Advertisements
Advertisements
Question
Fertile soil has lots of humus. Why?
Advertisements
Solution
Fertile soils are rich in organisms that digest dead organic matter, resulting in the formation of humus. Humus adds minerals to the soil, absorbs water, and makes it porous.
APPEARS IN
RELATED QUESTIONS
What are the methods of preventing or reducing soil erosion?
How do organisms contribute in the formation of soil?
Define soil erosion. Give its causes, effects and preventive measures.
Which of the following is not a greenhouse gas?
How can we prevent the loss of topsoil?
Following are a few organisms
(a) lichen (b) mosses (c) mango tree (d) cactus Which among the above can grow on stones; and also help in the formation of soil? Write the mode of their action for making soil.
Soil formation is done by both abiotic and biotic factors. List the names of these factors by classifying them as abiotic and biotic?
Lichens are called pioneer colonisers of bare rock. How can they help in the formation of soil?
Why step farming is common in hills?
Explain the role of the Sun in the formation of soil.
