humans pollute rivers!
Snakes don't help humans..but they are useful for entertainment..but are dangerous.
its not useful for the refrigerator its useful for humans only....
Meandering rivers provide habitats for wildlife and support biodiversity, contributing to ecosystem services that benefit humans. Humans utilize meandering rivers for activities such as fishing, transportation, agriculture, and recreation. However, meandering rivers can also pose risks to human settlements by causing erosion, flooding, and changes in land use patterns.
No. tapeworms are pest to humans.
t78ttr78t
how the rivers useful to us
its not useful for the refrigerator its useful for humans only....
we can not so suck it
Early humans used rivers for water to drink, cook, bathe, and irrigate crops; to fish; to swim; to travel; etc.
they damage the wetlands which are useful for humans.
Matt Knight:P