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प्रश्न
During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond ?
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उत्तर
A sudden increase in the nitrogen and other soil compounds in the pond will lead to an increase in the population of algae and phytoplanktons (bloom of algae or bloom of phytoplanktons) as they nitrify very quickly and multiply. This will, eventually, alter the population of other organisms present in the pond.
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संबंधित प्रश्न
Distinguish between micronutrients and macronutrients. Give suitable examples.
Distinguish between farmyard manure and compost manure.
Explain why a legume crop does not require nitrogenous fertilizers ?
Why is irrigation essential ?
How does excessive irrigation lead to soil salinity ?
Give two examples each of
(a) Narrow leaved rabi season weed.
(b) Broad leaved kharif season weed.
Explain various methods of weed control.
Explain the mechanism of compost formation.
Why is organic matter important for crop production?
Cultivation practices and crop yield are related to environmental conditions. Explain.
