What is an undesirable change in physical, chemical, or biological characteristics of air, land, water, or soil due to the introduction of contaminants called?(a) Succession(b) Pollution(c) Conservation(d) ExtinctionThis question was addressed to me in a national level competition.I want to ask this question from Environmental Issues in section Environmental Issues of Biology – Class 12

What is an undesirable change in physical, chemical, or biological cha

1.	What is an undesirable change in physical, chemical, or biological characteristics of air, land, water, or soil due to the introduction of contaminants called?(a) Succession(b) Pollution(c) Conservation(d) ExtinctionThis question was addressed to me in a national level competition.I want to ask this question from Environmental Issues in section Environmental Issues of Biology – Class 12
Answer» Right choice is (b) Pollution Easy explanation: Any undesirable CHANGE in physical, chemical, or biological characteristics of air, land, WATER, or SOIL DUE to the introduction of contaminants into the natural environment is known as pollution. It is also known as ENVIRONMENTAL pollution and affects the environment adversely.

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