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Forests Our Lifeline Test - 4

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Forests Our Lifeline Test - 4
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following helps the soil to prevent the flood?
    Solution
    • Trees help keep soil in place by holding a large amount of soil with there roots.
    • Without trees, rain runs off soil into rivers and streams, raising the water level which leads to floods.
    • Planting trees acts to shield soil from the winds, and the mulch from fallen leaves forms a layer to protect the soil on the "forest" floor.
    • Hence the forest helps the soil to prevent the flood.
    • So, the correct answer is 'Forest'.
  • Question 2
    1 / -0
    Different layers of vegetation provide _________ and________for animals.
    Solution
    Different layers of vegetation provide food and shelter for animals.Option A is correct.
  • Question 3
    1 / -0
    Forest is a purifier of 
    Solution
    • Forest is also called the lung of the earth because they absorb a large amount of carbon dioxide from the atmosphere and release oxygen into the atmosphere.
    • The Amazon rainforest functions as a giant air machine that absorbs a large amount of carbon dioxide, and produces oxygen. More than 20 percent of the world's oxygen is produced in the Amazon Rainforest. 
    • Hence, the forest is a purifier of air.
    • So, the correct answer is 'Air'.
  • Question 4
    1 / -0
    Plants release oxygen through the process called 
    Solution
    Plants release oxygen through the process of photosynthesis.Option A is correct.
  • Question 5
    1 / -0
    Heavy rains can leads to_______.
    Solution
    • Heavy rainfall leads to flood in towns and villages.
    • Drought, volcano and heat waves are the result of lesser rains.
    • Hence, Option A is correct.
  • Question 6
    1 / -0
    Mushrooms and other microorganism present in forests feed on________.
    Solution
    Mushrooms and other microorganisms known as decomposers feed upon the dead plant and animal tissues and convert them into a dark coloured substance called humus.
    Hence, Option C is correct.
  • Question 7
    1 / -0
    Which of the following is called as dynamic living entity?
    Solution
    • Forests are areas of biodiversity hot spots, as we know. They are full of plants, trees, animals and birds. 
    • Even the dead bodies of plants and animals are decayed by saprophytes, supporting large forms of life. 
    • In this process, they provide the soil with nutrients that help the seeds to grow properly and support new forms of life. So we can say that forests are dynamic living entities.
    So, option D, 'Forests' is the correct answer.
  • Question 8
    1 / -0
    Forests are reservoirs of wild life.
    Solution
    • Forests are reservoirs of wildlife as they provide shelter as well as food to animals. 
    • They maintain optimum climatic conditions for the survival of animals. Hence, animals are conserved in wildlife sanctuaries in their natural habitat. 
    • Forests also help in raining that make the water available to animals. 
    • Hence, the statement given in the question is correct.
      So, the correct answer is 'True'.
  • Question 9
    1 / -0
    Which of the following is the branchy part of a tree?
    Solution
    • The crown of a tree is basically the aerial part of trees that contains branches, leaves, and stems. Thus, it constitutes the branchy part of trees.
    • A stem tip refers to only the tip of the stem.
    • Apical stem and axillary stems are also stem types.
    So, the correct answer is option C.
  • Question 10
    1 / -0
    A natural resource is a substance/commodity that is a gift of nature which is very useful to mankind.
    Solution
    Since ancient times, Mankind has been directly dependent on natural resources such as water, forests, land and air for their survival. Therefore it can be said that, A natural resource is a substance/ commodity that is a gift of nature which is very useful to mankind.
    Option "A" is correct.
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