Advertisements
Advertisements
प्रश्न
Top-soil contains the following
विकल्प
Humus and living organisms only
Humus and soil particles only
Humus, living organisms and plants
Humus, living organisms and soil particles.
उत्तर
Humus, living organisms and soil particles.
Explanation:
Topsoil is the soil's top and outermost layer. which is typically 2 to 8 inches thick. It is often black in colour because of humus. which is partially decaying organic matter, soil particles and live creatures such as soil bacteria, among other things.
APPEARS IN
संबंधित प्रश्न
How is soil formed?
What is soil erosion?
Write a note on how forests influence the quality of our air, soil and water resources.
Which of the following is not a greenhouse gas?
A major source of minerals in the soil is the
Soil erosion can be prevented by
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?
Fertile soil has lots of humus. Why?
Explain the role of the Sun in the formation of soil.
