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Low BOD will be characteristic feature of :
- a)a eutrophic lake
- b)a deoxygenated water body with rich flora
- c)an oligotrophic lake
- d)a polluted river
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Low BOD will be characteristic feature of :a)a eutrophic lakeb)a deoxy...
Low biological oxygen demand (BOD) will be characteristic feature of an oligotrophic lake. In oligotrophic lake concentration of nutrients are very low so a few organisms only survive and BOD is comparatively low.
Most Upvoted Answer
Low BOD will be characteristic feature of :a)a eutrophic lakeb)a deoxy...
Explanation:
BOD (Biological Oxygen Demand) is the amount of oxygen required by microorganisms to decompose organic matter in water. The higher the BOD, the greater the amount of organic matter present in the water.
Oligotrophic lake:
An oligotrophic lake is a lake with low nutrient content, low productivity, and low BOD. It is usually deep and clear with low algal populations. The low BOD in oligotrophic lakes is due to the low organic matter content.
Eutrophic lake:
A eutrophic lake is a lake with high nutrient content, high productivity, and high BOD. It is usually shallow and murky with high algal populations. The high BOD in eutrophic lakes is due to the high organic matter content.
Deoxygenated water body with rich flora:
A deoxygenated water body with rich flora is a water body with low oxygen content but high plant populations. The plants in these water bodies produce oxygen through photosynthesis, but the oxygen demand of the plant and microbial populations exceeds the oxygen produced, resulting in low dissolved oxygen levels.
Polluted river:
A polluted river is a river with high levels of organic and inorganic pollutants, resulting in high BOD levels. The pollutants can come from industrial, agricultural, or domestic sources.
Conclusion:
Therefore, option C, an oligotrophic lake, will have a low BOD because of the low organic matter content, making it the characteristic feature of such a water body.
BOD (Biological Oxygen Demand) is the amount of oxygen required by microorganisms to decompose organic matter in water. The higher the BOD, the greater the amount of organic matter present in the water.
Oligotrophic lake:
An oligotrophic lake is a lake with low nutrient content, low productivity, and low BOD. It is usually deep and clear with low algal populations. The low BOD in oligotrophic lakes is due to the low organic matter content.
Eutrophic lake:
A eutrophic lake is a lake with high nutrient content, high productivity, and high BOD. It is usually shallow and murky with high algal populations. The high BOD in eutrophic lakes is due to the high organic matter content.
Deoxygenated water body with rich flora:
A deoxygenated water body with rich flora is a water body with low oxygen content but high plant populations. The plants in these water bodies produce oxygen through photosynthesis, but the oxygen demand of the plant and microbial populations exceeds the oxygen produced, resulting in low dissolved oxygen levels.
Polluted river:
A polluted river is a river with high levels of organic and inorganic pollutants, resulting in high BOD levels. The pollutants can come from industrial, agricultural, or domestic sources.
Conclusion:
Therefore, option C, an oligotrophic lake, will have a low BOD because of the low organic matter content, making it the characteristic feature of such a water body.
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Low BOD will be characteristic feature of :a)a eutrophic lakeb)a deoxygenated water body with rich florac)an oligotrophic laked)a polluted riverCorrect answer is option 'C'. Can you explain this answer?
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