Who among the following is the executive head of state in India?
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Two versions of the Internet Protocol (IP) are in use
Which one of the following is not a property of electromagnetic waves?
Under which article, President of India can proclaim constitutional emergency?
Indian Constitution came into force on
Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
The hardest part of the body is ______.
___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.