Chlorine is the main factor to damage ozone layer. CFC is considered responsible for $80 %$ of total decrease in ozone layer.
If the pollution in the atmosphere increases, which of the following is possible in future?
P. The ice at poles will melt and all the organisms will die living at the island.
Q. Many organisms living at island may migrate.
R. The existence of forests on the Earth will be no more.

Only Q

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Only P and Q

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All P, Q and R

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Only Q and R

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Solution

The correct option is C Only P and Q
Increase in pollution results in the greenhouse effect, which ultimately leads to global warming. This phenomenon affects the polar ice caps and thus affects life on the island. So, both P and Q statements are possible.

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Q. Assertion :Environmental damage has increased the amount of ozone in the atmosphere. Reason: Decrease of ozone increases the amount of ultraviolet radiation on the Earth.

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The correct option is C Only P and QIncrease in pollution results in the greenhouse effect, which ultimately leads to global warming. This phenomenon affects the polar ice caps and thus affects life on the island. So, both P and Q statements are possible.

The correct option is C Only P and Q
Increase in pollution results in the greenhouse effect, which ultimately leads to global warming. This phenomenon affects the polar ice caps and thus affects life on the island. So, both P and Q statements are possible.