We can control pollution being dumped into the rivers, regularly remove trash, and quickly address toxic spills to keep them clean. Rivers will naturally repair themselves but this process can take many generations or longer depending on the severity of the problems.
WE should keep our river clean to conserve the aquatic life and prevent human beings from suffering from the water borne diseases.
There is dirty water all over Africa. It's not easy to keep rivers clean,or to filter water.
Governments use rivers to clean it by putting the water into the "Water Treatment Plant." After they clean the water they put in your house to drink.
keep school clean
Only in some rivers.
it is important tokeep the leaves of the plant clean to keep their food that they produces keep clean and fresh
rerouted two rivers
You don't litter them in the first place
cause if there aren't any rivers or clean water were they live, they have to make one to survive
You clean it.
leevees are natural desposits that help keep rivers from flooding. Hope it helped XD
Why should you keep the monitor's surface clean