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Q. Which of the following devices measures the depth of the ocean?
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Q. Who among the following is known for the theory of Continental Drift?
Q. The blue colour of water in the sea is due to
Q. The chemical that is used to ripen mangoes is
Q. At high altitude, pressure cooker is preferable for cooking because the boiling point of water
Q. Which of the following is incorrect regarding the first law of thermodynamics?
Q. The material used in solar cells contains
Q. Cryogenic engines find application in
Q. The gas which emits from rice fields is
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