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Botany - Environmental Issues - Two Marks Study Materials

12th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. What is ozone hole?

  2. Give four examples of plants cultivated in commercial agroforestry.

  3. Expand CCS. (or) What is CCS?

  4. Define Greenhouse gases and list out its examples

  5. Name any four greenhouse gases.

  6. Define ozone hole. Name anyone potent chemical that is responsible for the effect.

  7. Where did Montreal Protocol was held? State its objectives.

  8. Write the uses of silvopasture system.

  9. Mention the name of any four plant species that are widely used as live fences in agricultural practicer.

  10. Point out the adverse effect caused by invasive species.

  11. Distinguish between In-situ conservation and Ex-situ conservation.

  12. What does the term 'Endemic' refers to?

  13. Name any two endemic trees of Peninsular India.

  14. List out the benefits of EIA to society.

  15. What is GIS?

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