Question

F. SELECT THE ODD ONE OUT GIVING REASONS :
1. Helium, Neon, Argon, Nitrogen, Xenon
2. Oxygen, Nitrogen, Carbon dioxide, Water vapours, Hydrogen
3. CO, NO, SO,, CO, O
4. Vehicles, Industries, Chimneys, Forest fires, Scrubbers.​

Answer 1

1. Helium

2. Nitrogen

3.NO

4.Scrubbers

Hope it helps.

Answer 2

Answer:

Number 1 = Nitrogen.

Number 2= Water vapours.

Number 3=CO.

Number 4=Vehicles.

Thank you.

Hope my answer helped.

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