Wetlands improve water quality by
a. filtration
b. distillation
c. osmosis
d. all of the above

Correct answer is filtration.

Wetlands improve water quality by filtration. Wetlands do the process of filtration by trapping the sediments found in water.Wetlands also perform water filtration by nutrient and bacterial absorption. It can be found in all 6 continents (Asia, Africa, North America, South America, Australia, Europe), except Antarctica.

Answermost of the time it would be ground into fine sediment,and sometimes they are carried away from the original location;

Answer the use of flood plains and irrigation;