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PPSC 2024 GK Part Multiple Papers, PPSC Past Paper 2024, PPSC Past Papers PDF | By Umar

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Ozone depleting substances?

Ozone depleting substances?

A. CFCs

B. Carbon dioxide

C. Carbon monoxide

D. Acetylene

Correct Answer: A. CFCs

Explanation: Chlorofluorocarbons (CFCs) deplete the ozone layer.

CPU stands for?

Youngest elected US President?

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