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प्रश्न
What is eutrophication?
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उत्तर
It is the process of oxygen depletion in water bodies, occurring either naturally or as a result of human activities. Eutrophication occurs due to the introduction of nutrients and chemicals through the discharge of domestic sewage, industrial effluents, and fertilizers from agricultural fields. Algae and phytoplankton use carbon dioxide, inorganic nitrogen, and phosphate from the water as food. This causes the death of most aquatic organisms by depleting the water of its oxygen.
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संबंधित प्रश्न
What is known as waste?
Define gaseous waste.
What do you mean by a scrubber?
In schools, waste management rules say that we should separate waste into two categories.
It is best to separate waste into 3 different bins.
What is waste collection?
Give the Solid Waste Management (SWM) rules.
Suggest suitable mechanism(s) for waste management in fertilizer industries.
In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the waterbody was completely covered with green floating plants and fishes started dying in large numbers.
Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.
Paheli gave the following ill effects of the practice of burning dried leaves and other plant parts
- Burning degrades the soil.
- Burning produces harmful gases/fumes.
- Precious raw materials to obtain manure at low cost is lost.
- Lot of heat is generated unnecessarily.
The correct reasons of why we should not burn leaves are
