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Management of Natural Resources Test - 18

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Management of Natural Resources Test - 18
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Water is listed as one of the basic
    Solution
    Water is essential for all living beings (human, animal and plant) for various
    metabolic reactions. They gain water not only through the action of drinking but also from the food they eat.
  • Question 2
    1 / -0
    Depletion of scarce materials present within the ground can be prolonged by
    Solution
    • Some of the resources which are obtained from the Earth's crust like fossil fuels, minerals, metal ores are limited. 
    • If the resources are continued to be exploited, soon these resources will be depleted and exhausted. 
    • The use of these substances should be restricted only for important purposes. The substances can be replaced by other materials which are renewable. 
    • The materials can be recycled in order to maintain the continuity of the resource. 
    Thus, the correct answer is option D. 
  • Question 3
    1 / -0
    What is the main cause of extinction of wild life?
    Solution
    Wildlife species may become totally extinct if no measures are taken to protect them. Some of the reasons for the extinction of wildlife are-
    a) Destruction of their natural habitats by environmental pollution, deforestation, soil erosion, overgrazing, increased urbanization, forest fires, and developmental works.
    b) Indiscriminate hunting
    Example: Cheetah is extinct in India
    c) Introduction of exotic species.
    d) Overexploitation of natural resources.
    e) Disturbance in migratory routes.
    f) International trade in rare animals.
    g) Lack of education.
    So, the correct answer is option D.
  • Question 4
    1 / -0
    The use of disposable paper cups is more beneficial than disposable plastic cups. Why? 
    Solution

    Wastes can be categorized as biodegradable or non-biodegradable.

    • Biodegradable wastes such as paper, kitchen wastes, etc. can be easily decomposed in nature by microorganisms and cause no harm to the environment. 
    • Non-biodegradable wastes such as plastic material, chemical pesticides, etc. cannot be decomposed by microorganisms and hence get accumulated in the environment.
    • Thus, the use of disposable paper cups is more environmentally friendly, since disposable paper cups are easily degradable and their complete recycling process has no negative effect on the environment. 

    Hence, the correct answer is option D.

  • Question 5
    1 / -0
    A local system of water harvesting practiced in the states of Madhya Pradesh and Uttar Pradesh is
    Solution
    There are various water harvesting systems observed all over India.
    Pynes are practiced in Bihar, Khadins in Rajasthan, Bundhis in Madhya Pradesh and Uttar pradesh, while Ponds in the Kandi belt of Jammu region.
    Thus, the correct option is C.
  • Question 6
    1 / -0
    __________ can be recycled to obtain useful products.
  • Question 7
    1 / -0
    Which of the following strategies to be taken for saving the environment?
    A. Reduce the use of electricity, water, and fossil fuels.
    B. Recycle products like plastic, glass, paper and metals.
    C. Reuse instead of throwing the envelopes, plastic bags and bottles etc.
    D. Using public transport system.
    Solution
    • Our environment needs to be consistently conserved to prevent its further loss and damage. 
    • For this purpose, the environmentalists have set the 5R policy. 
    • According to this policy, all the environmental waste should be refused, reduced, reused, recycled, repurposed. 
    • Use of public transport will ensure less use of fossil fuels.
    So, option D is the correct answer as all of the given statements are true.
  • Question 8
    1 / -0
    A garbage bin contains the following articles.Which of the articles can be recycled and used again?
    Solution
    Newspapers can be recycled to produce paper that can be used again.
    Bread is biodegradable and cannot be used again as it will rot soon.
    Raincoat and Plastic bags are made from poor quality plastic polymers and thus cannot be recycled to use again.
    The correct answer is 'newspaper'.
  • Question 9
    1 / -0
    Which mineral is called 'liquid gold'?
    Solution
    Petroleum is called liquid gold. It is so called to imply its significance. It shows that the petroleum is as significant as gold and also tells us that it is as difficult as finding gold. Without petroleum world’s economy would collapse. It is the main source of energy for transportation sector.
  • Question 10
    1 / -0
    Petroleum is ________ natural resource.
    Solution
    Resources which get exhausted and are not available in nature in plenty and are known as exhaustible  natural resources. They take longer to get replenished. For example coal, petroleum, forest, minerals,  etc.
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