Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
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Indian Constitution came into force on
The Directive Principles of State Policy has been adopted from which Constitution?
Who was the first female Governor of India?
In which system is the central government weakest?
Heavy water is mostly used in which of the following?
Sheikh Hasina Wazed is the Prime Minister of which neighbouring country of India?
_______ fiber is used in making bulletproof vests.