Assertion: Photochemical smog is a combi...

Assertion: Photochemical smog is a combination of photons with smoke and fog.
Reason: Photochemical smog is formed in the stratosphere.

If both 'A' and 'R' are correct and 'R' is correct reason for 'A'.

If both 'A' and 'R' are correct and 'R' is not correct reason for 'A'.

If 'A' is true and 'R' is false.

If both 'A' and 'R' are false.

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