Question

Why is the composition of air not constant everywhere?

Answer 1

• The composition of air is not constant everywhere.
• It varies from place to place and time to time.
• The air at higher altitudes contains less oxygen as compared to the plains.
• During the rainy season, the amount of air present in the air is more compared to summers as air contains more water vapour.
• The composition of a compound is fixed and does not vary from place to place and time to time.
• This proves that air is a mixture and not a compound.