Mention the main causes for water pollution.
Causes of water pollutions are : $(i)$ Pathogens
$(ii)$ Organic wastes
$(iii)$ Chemical pollutants.
Write down the effect of particulate pollutants on the environment.
What can we do to reduce the rate of global warming ?
Summerize primary information about water pollution.
Given below are two statements :
Statement $I$ : If $BOD$ is $4\,ppm$ and dissolved oxygen is $8\,ppm$, then it is a good quality water.
Statement $II$ : If the concentration of zinc and nitrate salts are $5 ppm$ each, then it can be a good quality water.
In the light of the above statements, choose the most appropriate answer from the options given below :
Give information on uses of green chemistry in day to day life.
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