Answer: Pollution of fresh water sources and flooding populated areas
Explanation:
Water is a source of living for aquatic animals and a source of feeding for humans. Polluted water is an hazard to aquatic animals, an example is crude oil, when oil is poured at some section of water, it tends to seize oxygen beneath the leading to loss of live for animals who stay there. When this animals are affected it causes a reduction in food for man, and in most cases, the water gets soiled beyond usage for man.
Flood is a major challenge in some areas in the world, flood leads to death and discomfort of humans, when property house planning are not done it results to flooding. This destroys both homes, humans and livestock.
