Apparatus Required: Reagents: THEORY: Free chlorine: Free chlorine, which is the chlorine that is left over and it is available to inactivate disease causing organisms.…
THEORY: In natural selection, disturbance are important aspects in the water biological…
REQUIREMENTS: THEORY: Population is a group of similar species living within a…
While planning a water supply scheme, it is necessary to find out…
THEORY: Population is total no. of people living in a particular area…
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