microbes are not all harmfull they can be but they are foundin the air and in water and in animals and in humans
I think you mean, What is water pollution? and it is when harmfull toxins are put into the water.
It is Nickel. It is not harmful.
harmfull
Alpacas are not harmfull. They are very gentle
protective clothing means the clothes which protect us from harmfull things.
Cast away- spells do not work. Harmful or helpful.
it is harmfull because it can kill people around the world
polluted water is harmful for animals and human beings who drink water from well.it is also harmfull for plants which are getting water from pollted groundwater.
water born disease are generally occur due to contaminated water i.e. contamination of some kind of pathogens or some harmfull compounds now the contamination of pathogens can be removed or over come by boiling water before use, and of dissolve harmfull or toxic compound we have to fillter water some time ultra fillteration is required.
because it has harmfull chemicals that hurt plants and they use water to make food so when the leaves take in the water its like poison to them
the ozone layer is our buffer zone between the us and the harmfull rays of the sun.