Which of the following is a wind based Indian musical instrument?
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___________ is the wearing away of the landscape by different agents like water, wind and ice.
The final boundary between the Earth and the outer space is called _____.
Which among the following is false about Earth?
Which of the following is NOT true about vascular system?
Classes comprising animals like fishes, amphibians, reptiles, birds along with mammals constitute the category called?
Carbon dioxide is produced by all of the following except
Helium is added to the oxygen supply of deep sea divers because it is _________