Question Paper from: SSC Stenographer (Shift-1)

Which of the following statements is true?

1:

Lead is the most hazardous metal pollutant of automobile exhaust .

2:

The toxic effect of Carbon Monoxide is due to its greater affinity for haemoglobin as compared to oxygen.

3:

Photochemical smog always contains Ozone.

4:

All options are correct.

Solution:
Chapter Name: Science

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