Air and its uses

WHICH LAYER COMES ABOVE THE TROPOSPHERE?

• STRATOSPHERE

• Exosphere

How much percentage is nitrogen?

• 91%

• 78%

• 21%

How much percentage is oxygen?

• 21%

• 0.04%

How much percentage is carbon dioxide?

• 0.04%

• 21%

• 1%

Which atmosphere is aeroplane flying?

• Troposphere

• Stratosphere

Which is the most abundant gas in the atmosphere?

• Oxygen

• Nitrogen

• Carbondioxide

Which atmosphere is aeroplane flying?

• Troposphere

• Stratosphere

How much percentage of argon is there in the air

• 1%

• 78%

The exosphere fades into

• Outer space

• Meteors