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Weekly Quiz Competition
  • Question 1
    1 / -0

    Which of the following is non biodegradable

    Solution

    Explanation:

    Aluminum is a durable and sustainable metal: Two-thirds of the aluminum ever produced is still in use today.

     

  • Question 2
    1 / -0

    ‘Hug the trees movement’ was the result of grass root level effort to

    Solution

    Explanation:

    The Chipko Andolan - or the ‘Hug the Trees Movement’ was the result of a grassroot level effort of the local people to protect the forests. The movement originated

    from an incident in a remote village called Reni in Garhwal in the Himalayas during the early 1970s. The local people hugged the tress and prevented the contractors from felling the trees.

     

  • Question 3
    1 / -0

    Thermal power plant uses energy from?

    Solution

    Explanation:

    Thermal power plants produce energy from coal and petroleum as they are most abundent fossil fuels which are available on our planet.

     

  • Question 4
    1 / -0

    Which of the following is not an example of a biomass energy source?

    Solution

    Explanation:

    Production of Atomic energy has no involvement of any type of biological activity.

     

  • Question 5
    1 / -0

    ZnCO3(s) undergoes ‘X’ to give ZnO + (oxygen). What does ‘X’ symbolized here?

    Solution

    Explanation:

    ZnCO3 heating decomposes to give ZnO and O2

     

  • Question 6
    1 / -0

    The odour of SO2 gas is

  • Question 7
    1 / -0

    Which type of mirror is used in ophthalmoscope to examine throat and ear?

    Solution

    Explanation:

    A concave mirror is used in ophthalmoscope to examine throat and ear. A concave mirror forms an enlarged image of the part being examined by a physician. An image formed by a plane mirror is of an equal size as that of the object, whereas a convex mirror always forms a diminished image, for any position of the object.

     

  • Question 8
    1 / -0

    The magnetic field lines inside a long current-carrying solenoid are nearly-

  • Question 9
    1 / -0

    An electric motor-

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