Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
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Which of the following was published by Gandhji during his stay in South Africa?
The ancient Indian legal document 'Manusmriti' was written in ___.
_______ fiber is used in making bulletproof vests.
Who of the following was the last Governor General of Bengal?
___________ gases absorb long wave (infrared) radiation from the earth and emit it again towards the earth.
Which type of cell, skin is made up of:
The element with the highest electron affinity among halogens is