Daily Practice MCQ Set-1 for Environmental Studies EVS for CTET and TETs

  1. Question: Which of the following is a renewable source of energy?
  • A) Coal
  • B) Natural Gas
  • C) Solar
  • D) Nuclear
  • Answer: C) Solar Explanation: Solar energy is derived from the sun and is continuously replenished, making it a renewable source of energy. Coal, natural gas, and nuclear energy are derived from finite resources and are non-renewable.
  1. Question: What is the primary cause of ozone depletion in the Earth’s atmosphere?
  • A) Carbon Dioxide emissions
  • B) Nitrogen Oxide emissions
  • C) Chlorofluorocarbons (CFCs)
  • D) Methane emissions
  • Answer: C) Chlorofluorocarbons (CFCs) Explanation: Chlorofluorocarbons (CFCs) released from products like aerosol sprays and refrigerants are the primary cause of ozone depletion, leading to the formation of the ozone hole in the atmosphere.
  1. Question: Which of the following is NOT a greenhouse gas?
  • A) Carbon Dioxide (CO2)
  • B) Methane (CH4)
  • C) Oxygen (O2)
  • D) Nitrous Oxide (N2O)
  • Answer: C) Oxygen (O2) Explanation: Oxygen (O2) is not a greenhouse gas. Carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) are all greenhouse gases that contribute to global warming.
  1. Question: What is the main cause of soil erosion?
  • A) Deforestation
  • B) Urbanization
  • C) Overgrazing
  • D) Agriculture
  • Answer: A) Deforestation Explanation: Deforestation, the process of cutting down trees, removes the protective cover of vegetation, leading to soil erosion. While urbanization, overgrazing, and agriculture also contribute to soil erosion, deforestation has a more significant impact.
  1. Question: Which of the following is an example of non-biodegradable waste?
  • A) Paper
  • B) Vegetable peels
  • C) Plastic bottles
  • D) Fallen leaves
  • Answer: C) Plastic bottles Explanation: Non-biodegradable waste does not decompose easily and can persist in the environment for a long time. Plastic bottles are a common example of non-biodegradable waste, whereas paper, vegetable peels, and fallen leaves are biodegradable and can decompose naturally.

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