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Since the earth is polluted with harmful substances that go into the water, the water that falls as rain and snow ect. will be polluted.
Harmful organisms in water can come from decaying animals, fecal material, urine, and of course from the normal cyclical development of parasitic organisms that are shed by living host animals at certain times of the year or during specific environmental changes.
Some harmful organisms are normally extant in water at non pathogenic/non infectious levels and only create problems when certain conditions allow them to multiply.
What else can I help you with?
Why do you chlorinate water?
Kills bacteria and harmful organisms.
Why is drinking water chlorinated?
To kill harmful organisms in the water that would make you sick.
Why UV water is not harmful for drinking?
because it kills micro-organisms & bacteria
What material is found in air water or soil that is harmful to humans or other organisms?
pollutant
What are harmful effects of Toxic chemical?
Harmful effects of toxic chemical are- When thrown in water bodies they pollute the water and all the freshwater organisms die. they also pollute the environment.
What organisms are bacteria harmful to?
There are harmful to all organisms, but some bacteria are helpful in many ways.
Is chlorinated water healthy?
not particularly but a little chlorine is less harmful then some of the micro organisms that like to live in it.
Are microscopic organisms harmful?
Some of them are, however, there are many microscopic organisms that are not harmful, some of which you could not survive without.
Is all fresh water clean?
No. Water is called fresh simply when it does not have too much salt in it. Fresh water could still be contaminated with toxins or harmful organisms.
Is sedimentation a process of water purification?
Yes, sort of. The solutes in solution heavier get settle at bottome but not the harmful micro-organisms.
Why does my water taste like chlorine?
The taste of chlorine in your water is likely due to the presence of chlorine used in the water treatment process to kill bacteria and other harmful organisms.
Where do harmful bacteria in storm water come from and how can you stop it?
bacteria in storm water comes from pet and animal waste.
