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Subject :NSO    Class : Class 5

The given graph shows the changes in level of pollution in an area over a time period.

Which of the following can be inferred from the given graph?

AAt point P a lot of forest land was cleared for human consumption whereas at point Q large scale afforestation was done.
BAt point R a new factory was set up in the area.
CPeople cut down the use of fossil fuels in the interval S - T as compared to its earlier usage.
DIntervals R - S and T - U indicate activities like use of bioinsecticides and biopesticides instead of chemicals in farming, use of public transport instead of private transport, etc.

Ans 1: (Master Answer)

Class : Class 1


Use of bio-insecticides and bio-pesticides will bring down the pollution level, and Intervals R – S and T – U show the pollution levels coming down.

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