Study of earth is known as
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The instrument used to measure Blood Pressure is
Which of the following is man-made fibre?
What is the name of the asteroid that causes Geminid meteor shower display around 15 December of every year?
______ is the time taken by the earth to return to a given point in its orbit with reference to a fixed star.
Which is the highest quality of hard coal?
UV rays coming from Sun, majorly causes which cancer?