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प्रश्न
Continuously water-logged soils are disadvantageous for plant growth. Why?
उत्तर
Roots, although underground, possess living cells that require oxygen for respira¬tion and production of energy. They absorb oxygen that is present in the spaces between soil particles. But in waterlogged soils, water occupies the spaces between soil particles and pushes the oxygen out into the atmosphere. Thus, roots are deprived of oxygen and this affects plant growth.
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संबंधित प्रश्न
Which of the following situations – ‘A’ or ‘B’ – is advantageous for the absorption of water and minerals? Why?
Situation ‘A’: Growth and branching of roots in the C-horizon.
Situation ‘B’: Growth and branching of roots in A and B horizons.
In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.
