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When it got dirty and everybody who started drinking the water died.
Two of the many kinds of pollution are air pollution and water pollution. Air pollution is caused when chemicals, such as carbon monoxide and sulfur dioxide, get released into the air and go towards the atmosphere. Water pollution is caused when waste products and contaminants get released and get into rivers, causing groundwater, liquid spills, waste water discharges, and littering. I got this answer at wikipedia I you on whatever you are doing.
Because it's caused when As long as there has been water there has been water pollution.Natural water pollution occurs when salt water flows into fresh water, animals die in the water, river banks erode, or volcanic gases mix with water.Man made water pollution has existed as long as there have been people. Early settlements used water for sewage disposal, poisoned streams to kill fish and drove cattle through streams. As our settlements and farms grew bigger and we got more numerous water pollution increased. In the middle ages fair sized cities still used streams as sewers, by the Industrial Revolution all sorts of toxic materials from mines and new industries were discharged along with sewage.Today we take a bit better care f the water but are using so much of it that the supply that is left can be degraded How_long_has_water_pollution_been_a_problem.
by cooling the water before releasing it back in to the source they got it from and they can install pond or cooling towers to cool the water
As long as there has been water there has been water pollution. Natural water pollution occurs when salt water flows into fresh water, animals die in the water, river banks erode, or volcanic gases mix with water. Man made water pollution has existed as long as there have been people. Early settlements used water for sewage disposal, poisoned streams to kill fish and drove cattle through streams. As our settlements and farms grew bigger and we got more numerous water pollution increased. In the middle ages fair sized cities still used streams as sewers, by the Industrial Revolution all sorts of toxic materials from mines and new industries were discharged along with sewage. Today we take a bit better care f the water but are using so much of it that the supply that is left can be degraded easily.
1) first people didin't realize it was dangerous 2) then they didn't have the technology to prevent it, but they still wanted to do the things that caused the pollution 3) then they got the technology but thought they couldn't afford to treat the poolution.
Water pollution
They got water from rivers and aquifers, and food from their farms.
you need water to live. water got a lot protein in it and it is healthy
Greece got thire water not by the sea but by batering or buying it from other people
the country that will have the easiest time developing a new economy if the low sources got low is canada because they of the pollution in the air and the lowness in the oil
The Mi'kmaq got their water from spring fed brooks and waterways in the forest.