The wonderful thing about a river is that is is always getting a fresh supply of clean water.
The mess needs to be cleaned up by people, the source of the contamination needs to be stopped, and all will be well.
naturally, by digestion of organic compounds by microorganisms.
A river is cleaned up naturally by digestion.
It will wash the wate away eventually, and then clean itself up fairly quickly, but it may take longer for its wild-life to re-establish itself fully. The authorities in the UK will try to rescue fish from polluted streams if practicable, and in some siutations pump oxygen into the water to try to break down the pollutant and keep the animals alive.
They cleaned up and gave funding to support clearing up the flooding in the Arkansas River. This was how the river was cleaned up.
they cleaned the latrines in medieval times. the would gather the human waste..
the waste products must be cleaned up to blood waste then leaves the body in the urine the digestive system and kidneys work together to provide nutrients and remove .
the waste products must be cleaned up to blood waste then leaves the body in the urine the digestive system and kidneys work together to provide nutrients and remove .
All the trash that hasn't been cleaned up
The Amazon doesn't need to be managed. It needs to be protected and cleaned up. This river is the lifeline for animals as well as the people of the region.
They do this through a process of osmosis. The waste ends up taking over the river which is why it needs to be regulated sometimes.
They used pig urine to absorb the gas. In WW1 this waste was then given to soldiers to drink, and it was considered a delicacy.
Yes it can be cleaned up.