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Environmental Issues Test - 20

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Environmental Issues Test - 20
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Weekly Quiz Competition
  • Question 1
    1 / -0
    ______ can cause sea levels to rise dramatically.
    Solution
    Due to global warming the temperature of earth's atmosphere is increasing, and the temperature at poles and high mountains is also increasing. This increase in temperature results in melting of the ice on poles and peaks of mountain that can result in rise in the level of sea. 
    Thus, the correct answer is option A. 
  • Question 2
    1 / -0
    In which of the following year, the depletion of the ozone layer have been noticed?
    Solution
    The depletion of the ozone layer was noticed in the year 1980.
    The large scale destruction of the stratospheric ozone first came into focus in 1987 through the experiments in antarctica.
  • Question 3
    1 / -0
    Ozone exists in earth stratosphere and is responsible for protecting humans from harmful _______.
    Solution
    Ozone exists in earths stratosphere and is responsible for protecting humans from harmful ultraviolet (UV) rays. 
  • Question 4
    1 / -0
    What happen when the destruction of the ozone layer increases?
    Solution
    When the destruction of the ozone layer increases, the amount of harmful ultraviolet radiation increases.
    Note:
    Ozone layer acts as natural sun block and shields us from the UV radiations of the sun which are dangerous to living organisms.
    The ozone molecules absorb ultraviolet rays between 310 to 200 nm wavelength.
    Ozone absorbs UV radiation to give back oxygen. Thus, the ozone layer acts as a screen and prevents the harmful radiations from reaching the surface of earth.
  • Question 5
    1 / -0
    Organic farming is a farming system with minimal or no use of chemicals such as
    Solution
    Organic farming is a form of agriculture that relies on techniques such as crop rotation, green manure, compost, and biological pest control. Organic farming is a farming system with minimal or no use of chemicals such as fertilizers, herbicides, pesticides.
    Thus, the correct answer is option D.
  • Question 6
    1 / -0
    Which layer is considered crucial for the existence of the ecosystems on the planet which is depleting due to increased pollution?
    Solution
    The ozone layer considered crucial for the existence of the ecosystems on the planet is depleting due to increased pollution.
  • Question 7
    1 / -0
    When the level of contaminants in air becomes so much that air becomes harmful for living beings, it is called ________.
    Solution
    When the level of contaminants in the air becomes so much that air becomes harmful to living beings; it is called air pollution.
  • Question 8
    1 / -0
    .................. has destructive effects on the entire ecosystem.
    Solution
    Nuclear pollution is extremely hazardous in nature. It occurs as a result of nuclear explosions that are performed during nuclear tests. The explosions cause the release of radioactive material into the stratosphere from where they fall into the earth's atmosphere.The smallest particles of the radioactive material called fallout settle on the leaves of plants and trees. These leaves are eaten by the grazing animals. Hence radioactive material enters the ecosystem. Humans consume these particles through the food chain leading to cancer and genetic mutation. Genetic mutations have long-term deteriorating effect. Fallouts may also accumulate in the seas that harm fishes and ultimately humans. Hence radioactive pollution has destructive effects on the entire ecosystem. Thus the correct answer is option A.
  • Question 9
    1 / -0
    What does e-waste stand for? 
  • Question 10
    1 / -0
    Discarded electronic items are categorized under
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