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Marked decline in the thickness of ozone layer was noticed in the 1980s. Which human activity can be held accountable

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Marked decline in the thickness of ozone layer was noticed in the 1980s. Which human activity can be held accountable for this change? What is the possible effect of this on human health?

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Air pollutants like CFCs caused the depletion of this protective shield.

Ozone layer shields the surface of the earth from harmful UV rays from the sun which are known to cause skin cancer in human beings.

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