Air-composition and structure

The remaining 1% consists of

• Argon

• Helium

• Carbon Dioxide

• Ozone

• Neon

The word atmosphere is derived from the Greek

words

• Atmos and Vapour

• Atoms and sphere

• Atmos and Spira

• Spira and vapour

How much does it extend

• 1600m

• 6Km

• 32Km

• 1600Km

Density of air is high near the earth surface due to ---------

• Water

• Dust Particles

• Gravitation

• Atmosphere

The air is used for oxygen for plants and carbon

dioxide for Humans.

• True

• False

50% of the total mass of the atmosphere lies within 6cm

from the earth’s surface and 99% lies with in a height off 32 km.

• False

• True

The percentage of nitrogen in the atmosphere.

• 75%

• 78%

• 1%

• 21%

The air starts getting fat and separates from the space.

• True

• False

It is clear that there is ___________ the atmosphere and the space.

• Boundary between

• Not enough information

• No boundary between