Question

To study the water samples collected from different water bodies for presence of any living organism

Answer 1

this is the practical for to study the clarity and presence of any living organism in different water samples

Answer 2

The presence of any living organism in water

Explanation:

• Turbidity is the proportion of the general clearness of a fluid. Turbidity of the water body decides the profundity to which light can infiltrate and hence influences the appropriation and photosynthesis of phytoplankton and macrophytes. The more turbid the water body, the less is the thickness of its photic zone (the layer of a waterway that is infiltrated by adequate daylight for photosynthesis).  
• Gather a water test, ideally from a lake, in a test tube.  
• Leave the example undisturbed, until the silt settles at the base of the test tube.  
• Move a drop from the test tube on to a glass slide.  
• Delicately place a coverslip on the slide utilizing a needle.  
• Watch the whole slide utilizing a compound magnifying lens.  
• pond tests have large number of microscope observation