High value of BOD shows?a)Water is highly pollutedb)Water is normalc)Water is less pollutedd)None of theseCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

High value of BOD indicates high water pollution...BOD value is directly proportional to water pollution

Answer

BOD (Biochemical Oxygen Demand) reffers to the amount of the oxygen that would be consumed if all the organic matter in one liter of water were oxidised by bacteria. The BOD test measures the rate of uptake of oxygen by microorganisms in a sample of water and thus indirectly BOD is a measure of the organic matter present in the water. The greater the BOD of waste water, more is its polluting potential.

Answer

See you must understand what is bod it means the amount of oxygen required to decompose the organic matter present 1 liter so as pollution increases the bod to increases

Answer

Explanation:

The Biochemical Oxygen Demand (BOD) is an important parameter used to measure the amount of dissolved oxygen consumed in the aerobic decomposition of organic matter present in the water. The higher the BOD value, the greater the amount of organic matter present in the water. High BOD value shows that water is highly polluted.

Reasons for High BOD Value:

There are various reasons for high BOD value, which are mentioned below:

1. Presence of Wastewater: Wastewater from various sources such as industrial discharge, domestic sewage, agricultural runoff, etc., contains high amounts of organic matter that increase the BOD value of water.

2. Overuse of Fertilizers and Pesticides: Overuse of fertilizers and pesticides in agricultural fields results in the leaching of these chemicals into water bodies, increasing the organic content in water and thus the BOD value.

3. Natural Processes: Natural processes such as the decay of dead plants and animals, and the decomposition of leaves and other organic matter that falls into the water bodies also increase the organic content in water and thus its BOD value.

Effects of High BOD Value:

1. Depletion of Dissolved Oxygen: High BOD value causes depletion of dissolved oxygen in water, which is essential for the survival of aquatic organisms.

2. Harmful to Aquatic Life: High BOD value is harmful to aquatic life as it can cause fish kills and other adverse effects on aquatic organisms.

3. Unpleasant Odor: High BOD value often results in an unpleasant odor, which makes the water unsuitable for use.

4. Unfit for Human Consumption: Water with high BOD value is unfit for human consumption as it may contain harmful microorganisms that can cause waterborne diseases.

Conclusion:

In conclusion, high BOD value indicates that the water is highly polluted and unsuitable for use. It is essential to reduce the organic content in water to maintain the health of aquatic life and ensure the safety of human consumption. Regular monitoring of BOD value is vital to ensure the quality of water and prevent adverse effects on the environment and public health.

Answer

Bod is directly proportional to pollution of water

Answer

High the value of BOD water is highly polluted...

Answer

High BOD value shows that the water body is highly polluted....so option A

Answer

Water is highly polluted..its directly proportional

Answer

Water is high polluted

Answer

BOD( biological oxygen demand) is the amount of oxygen required to decompose all the organic matter present in 1 litre of water. So, more is the pollution, greater would be the organic matter present in it and hence, greater the BOD. So, option a is correct.

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