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Forests Our Lifeline Test - 5

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Forests Our Lifeline Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following are green lungs?
    Solution
    • Forests are called green lungs because they fix the carbon dioxide in the presence of sunlight and convert them into glucose by the process of photosynthesis. 
    • The reaction of carbon dioxide with water during this process releases oxygen as a byproduct and glucose is formed. Thus, the forest replenishes oxygen in turn of carbon dioxide, which is the basic source of survival of life on earth.
    • Forests also have an important role in other bio-cycles such as the water cycle, oxygen cycle, and carbon cycle.
    Thus, the correct answer is option D.
  • Question 2
    1 / -0
    If all the plants of the world die, all the animals will also die due to shortage of -
  • Question 3
    1 / -0
    Which of the following has canopy?
    Solution
    Canopy, which may be over 100 feet (30 m) above the ground, is made up of the overlapping branches and leaves of rainforest trees.
    Short trees, grass and shrubs don't form canopies.
    So, option C " Tall Trees" is the correct answer..
  • Question 4
    1 / -0
    Which of the following provides nutrients to the seedling to grow in forest ?
    Solution
    The animals living in the forests excrete the nitrogenous wastes which is acted upon by the microbes. The complex materials in the dung is converted into simpler form of nutrients. These nutrients are taken up by the plants and trees in the forests. The new seedling utilises the nutrients from this decayed dung. 
    Thus, the correct answer is option D. 
  • Question 5
    1 / -0
    When we destroy a forest we destroy:
    Solution
    • The forest forms a cycle of interdependent events which supports wildlife and the trees present in that area. 
    • Once a forest is destroyed, these events are altered resulting in the destruction of the lifestyle of organisms surviving in that habitat, thus destroying the ecosystem.
    So, option 'A' is correct.
  • Question 6
    1 / -0
    Forest is known as habitat because
    Solution
    Forest is made up of an array of trees and water bodies that provide food and shelter for all animals, birds, and microorganisms present in the ecosystem.
    So, option "D" is correct.
  • Question 7
    1 / -0
    The top part of trees in forest is called as
    Solution
    • The upper or top parts of trees in the forest is called as canopy.
    • The branchy part of a tree above the stem is known as the crown.
    • Trees creating different horizontal layers in the forest are called Understoreys.
    Hence, Option "A" is correct.
  • Question 8
    1 / -0
    Which of the following is a natural habitat?
    Solution
    Zoo and Aquarium are man made habitat, whereas forest is natural habitat which provide food and shelter for wildlife and other small animals in the ecosystem.
    Option "A" is correct.
  • Question 9
    1 / -0
    The most rapidly depleting resource in the world is 
    Solution
    Forest is depleting day by day due to the rapid urbanisation. As urbanising is increasing rapidly thus forest is most rapidly depleting natural resource. 
  • Question 10
    1 / -0
    Which of the following will be affected due to the absence of forest?
    Solution
    Due to cutting of trees or deforestation-
    • Many animals loose their source of food and shelter.
    • Percentage of oxygen and carbon dioxide varies i.e. balance in the atmospheric concentrations is disturbed.
    Option D is correct.
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