7th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Which one of the following statements is correct?

    A) Wind is produced due to uneven heating on the earth by the sun

    B) Wind vane is used to find speed of wind at a place

    C) The coast line of India is not vulnerable to cyclone

    D) Warm air is heavier than cool air

    E) None of these

    Correct Answer: A


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