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Question

Why are non biodegradable substances harmful to the environment?

This question was previously asked in
RRB Group D 2025 Question Paper (18-Aug-2026) (Shift 1)
The correct answer is

They persist for a long time and may harm organisms

Non-biodegradable substances (such as plastics) cannot be broken down by microorganisms, so they remain in the environment for very long periods.

Their persistence leads to pollution, clogging of ecosystems, and harm to plants and animals that ingest or are exposed to them.

Hence, this is the correct answer.

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Similar Questions

  1. Which of the following scenarios can disturb a food web the most?

  2. Which of the following leads to significant damage to the ozone layer in the atmosphere?

  3. What happens to biodegradable substances when they are released in the environment?

  4. Which of the following principles helps reduce pressure on the environment and promotes sustainable living?

  5. Which of the following pairs correctly represents biodegradable and non-biodegradable substances, respectively?

  6. Why top-level consumers are most affected by biological magnification in a food chain?

  7. Food webs help in maintaining ecosystem stability because they:

  8. What is the key realization that can lead to more sustainable use of natural resources?

  9. What is the role of decomposers in an ecosystem?

  10. Why are non-biodegradable wastes considered more dangerous than biodegradable wastes?


Important Questions from Ecology and Environment

  1. The Imperial Forest Research Institute was set up in 1906 in:

  2. Buxa Tiger Reserve is located in:

  3. Which day is celebrated as the World Environment Day?

  4. Which Indian products are issued with eco - mark?

  5. Degradation of global environment has not resulted in one of the following.

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