EVS PART 2

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EVS part 2

Here are 17 multiple-choice questions (MCQs) on Environmental Studies (EVS) along with their answers:




21 **Which layer of the atmosphere protects us from harmful ultraviolet radiation?**

   A) Troposphere

   B) Stratosphere

   C) Mesosphere

   D) Ozone Layer


   **Answer: D) Ozone Layer**


22**What is the process by which plants make their food?**

   A) Respiration

   B) Photosynthesis

   C) Transpiration

   D) Fermentation


   **Answer: B) Photosynthesis**


23. **Which of the following is a renewable resource?**

   A) Coal

   B) Oil

   C) Wind

   D) Natural Gas


   **Answer: C) Wind**



24. **The 'Three Rs' to save the environment stand for:**

   A) Reduce, Reuse, Recycle

   B) Rebuild, Reclaim, Restore

   C) React, Reflect, Revise

   D) Read, Write, Recite


   **Answer: A) Reduce, Reuse, Recycle**


25. **Acid rain is caused by the release of which of the following gases into the atmosphere?**

   A) Oxygen and Nitrogen

   B) Hydrogen and Helium

   C) Sulphur Dioxide and Nitrogen Oxides

   D) Carbon Monoxide and Carbon Dioxide


   **Answer: C) Sulphur Dioxide and Nitrogen Oxides**



26. **The term 'Ecology' was coined by:**

   A) Charles Darwin

   B) Ernst Haeckel

   C) Rachel Carson

   D) Aldo Leopold


   **Answer: B) Ernst Haeckel**


27. **Which of the following is not a consequence of deforestation?**

    A) Soil Erosion

    B) Air Pollution

    C) Increased Wildlife Habitat

    D) Loss of Biodiversity


    **Answer: C) Increased Wildlife Habitat**


28 **Sustainable development aims to:**

    A) Exploit natural resources

    B) Balance conservation and human needs

    C) Increase economic growth

    D) Promote industrialization


    **Answer: B) Balance conservation and human needs**


29 **The main source of water pollution is:**

    A) Soil erosion

    B) Industrial waste

    C) Noise pollution

    D) Air emissions


    **Answer: B) Industrial waste**


30 **Which gas is most responsible for the greenhouse effect?**

    A) Oxygen

    B) Carbon Dioxide

    C) Argon

    D) Neon


    **Answer: B) Carbon Dioxide**


31. **What percentage of the Earth's water is available for human use?**

    A) 97%

    B) 3%

    C) 0.3%

    D) 0.03%


    **Answer: C) 0.3%**


32 **Which of the following is not a type of biodiversity?**

    A) Genetic

    B) Species

    C) Ecosystem

    D) Atmospheric


    **Answer: D) Atmospheric**


33. **The concept of 'food chain' is fundamental in understanding:**

    A) Agricultural practices

    B) Nutritional values

    C) Energy transfer in ecosystems

    D) Cooking techniques


    **Answer: C) Energy transfer in ecosystems**


34**Which of the following is a consequence of overfishing?**

    A) Increased fish populations

    B) Disruption of marine food webs

    C) Cleaner ocean waters

    D) More coral reefs


    **Answer: B) Disruption of marine food webs**


35. **The Kyoto Protocol is related to:**

    A) Biodiversity conservation

    B) Climate change

    C) Ocean acidification

    D) Desertification


    **Answer: B) Climate change**


36. **What is the primary cause of ozone depletion?**

    A) Greenhouse gases

    B) Chlorofluorocarbons (CFCs)

    C) Deforestation

    D) Volcanic eruptions


    **Answer: B) Chlorofluorocarbons (CFCs)**


37. **Which of the following energy sources is considered the cleanest?**

    A) Coal

    B) Nuclear

    C) Solar

    D) Natural Gas


    **Answer: C) Solar**

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