Answer: Option A
:
Factors: 1.5 Marks
Water table: 1.5 Marks
There can be various factors affecting the quality of water. They are:
1) Presence of dissolved chemicals.
2) Presence of dissolved biological compounds.
3) Presence of mud, sand and other effluents.
The various reasons for the depletion of the water table are:
i) Increasing population.
ii) Industrial and agricultural activities.
iii) Deforestation and decrease in the effective area of seeping.