What factors affect water quality

Many factors affect water quality

Sedimentation

Runoff

Erosion

Dissolved oxygen

pH

Temperature

Decayed organic materials

Pesticides

Toxic and hazardous substances

Oils, grease, and other chemicals

Detergents

Litter and rubbish

There are so many factors which may/will affect the quality of water

Explanation: such as

i) Acid : it may come from acid rain and etc

ii) toxic waste materials : especially from high operating factories

iii) Oil spillage: accidents during oil shipping etc

iv) littering: dumping of trash and rubbish

v) toxic substances; may come from harmful chemicals which are used in fishing etc... pesticides

vi) bathing and washing in water bodies with animals affects water quality

vii) dumping of waste products into water bodies

viii) mining underground activities

ix) Erosion may also affect water quality

x) leakages: especially in sewage pipes

HOPE THIS HELPSS

the answer is a the king was elected to his position

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.