Q. 165.0( 2 Votes )
Continuously water-logged soils are disadvantageous for plant growth. Why?
The function of the roots includes water absorption and uptake of oxygen from the pore space (the space between soil particles) of the soil. When soil is water logged, all the pore spaces are filled with water and oxygen is pushed out of the soil. Oxygen from the pore spaces move into the atmosphere. So, in water logged soil, the plants do not grow well as the roots of the plants do not absorb oxygen. This stops the respiration and production of energy. As a result the plant dies after some time in absence of oxygen.
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Unscramble the following jumbled words related to soil.
NCERT - Exemplar Science
Razia conducted an experiment in the field related to the rate of percolation. She observed that it took 40 min for 200mL of water to percolate through the soil sample. Calculate the rate of percolation.NCERT Science
Match the items in Column I with those in Column II:
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(iii) Loamy soil contains only sand and clay.
(iv) Top soil contains the maximum amount of humus.
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