Which of the following are examples of ecosystem services that humans derive from water bodies?
i. the development of algal blooms in lakes
ii. the gradual removal of water pollutants by wetlands
iii. the growth of fish, crustaceans, and other food sources in oceans

a. l only
b. i and ii only
c. i and iii only
d. ii and iii only
e. i, ii, and iii

d. II and III only

Explanation:

These are two of the benefits that humans derive from water bodies. The gradual removal of water pollutants by wetlands allows humans to enjoy a more purified water. Moreover, the growth of fish, crustaceans and other food sources allows us to obtain nourishment from the animals that we find in the ocean. However, the development of algal blooms in lakes does not bring any benefit to humans.

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