Pollutants from man's activities like effluents from the industries and homes can radically accelerate the ageing process known as :

Options

A. Biomagnification
B. BoD
C. Accelerated Eutrophication
D. COD

Answer

To solve the question regarding the pollutants from human activities that accelerate the aging process, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the aging process that is accelerated by pollutants from human activities, specifically effluents from industries and homes.

2. **Identifying Key Terms**: The key terms in the question are "pollutants," "effluents," "accelerate," and "aging process."

3. **Analyzing the Options**: We need to evaluate the options provided (though they are not listed here, we will assume common terms related to pollution and environmental science):
- **Biomagnification**: This refers to the increasing concentration of toxic substances in the food chain. It is not directly related to the aging process of water bodies.
- **BOD (Biological Oxygen Demand)**: This measures the amount of oxygen required by microorganisms to decompose organic matter in water. It does not refer to the aging process.
- **Accelerated Eutrophication**: This is a process where water bodies become enriched with nutrients (like nitrogen and phosphorus), leading to excessive growth of algae (algal blooms) and depletion of oxygen, which can cause the death of aquatic life. This is directly related to the aging of aquatic ecosystems.
- **COD (Chemical Oxygen Demand)**: This measures the amount of oxygen required to chemically oxidize organic and inorganic matter in water. Like BOD, it does not refer to the aging process.

4. **Selecting the Correct Option**: Based on the analysis, the correct answer is **Accelerated Eutrophication**, as it describes the aging process of water bodies due to nutrient pollution.

5. **Conclusion**: The pollutants from human activities, particularly effluents, contribute to accelerated eutrophication, which is the aging process of aquatic ecosystems.

### Final Answer:
The correct answer is **Accelerated Eutrophication**.

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