Any undesirable change in the physical, chemical or biological characteristics of air, land and water that affect human life adversely is called__.

Q. Any undesirable change in physical, chemical or biological characteristic of air, land, water or soil is called

Q. Pollution is a change in physical, chemical or biological characters of our land and water that may be:

Q. Alteration in physical, chemical and biological characteristics of X which may have harmful effects on human and aquatic life is called X Y. Identify X and Y.

Q. Alteration in physical, chemical or biological characteristic of water, making it unsuitable for designated use in its natural state, is ________.

Q. The addition of any substance to water, which leads to change in its physical and chemical characteristic, is defined as water pollution. It results in