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.
A
X- Air
Y- Quality
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B
X- Soil
Y- Erosion
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C
X- Water
Y- Pollution
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D
X- Light
Y- Diffraction
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Solution
The correct option is C X- Water
Y- Pollution When water gets mixed with chemicals, waste particles or any other foreign particles it becomes harmful for humans and aquatic life. This is called water pollution.