Phosphate pollution is caused by:
Correct answer: B. Sewage and agricultural fertilizers.
- A. Sewage and phosphate rock.
- B. Sewage and agricultural fertilizers.
- C. Phosphate rock only.
- D. Agricultural fertilizers only.
Explanation
Phosphate pollution is indeed primarily caused by the release of phosphates into the environment from various sources, with sewage and agricultural fertilizers being two significant contributors. Phosphate is an important compound of fertilizers that are added to crop fields and then are passed down to water bodies during rains through run off. It is also present in sewage that is dumped into the water body. This can bring about the dense growth of water plants especially the algae and cause an algal bloom. This algal bloom leads to oxygen depletion in water bodies and causes death of aquatic life.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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