Air Around Us

Arrange the following in descending order according to their percentage:

Nitrogen, Argon, Carbon dioxide, Oxygen

• Nitrogen > Argon > Oxygen > Carbon dioxide

• Nitrogen > Oxygen > Argon > Carbon dioxide

• Oxygen > Carbon dioxide > Nitrogen > Argon

• Argon > Carbon dioxide

Which of the following gas helps in burning?

• Nitrogen

• Oxygen

• Carbon dioxide

• Water vapour and Argon

The ratio of nitrogen to oxygen in the air is

• 1:4

• 4:1

• 3:1

• 1:2

Which is not a property of air?

• It occupies space

• It is transparent

• It is a solution.

• It is a compound.

Tags

NGSS.MS-ESS2-5

The ______ is responsible for insulating our planet and maintaining stable temperatures.

• magnetosphere

• atmosphere

• magnetic field

• International Space Station

Tags

112.19.b.9.A

Which type of air is more dense?

• warm air

• cold air

• tropical air

Cool air is ________ so it _______, but warm air is _______, so it _______.

• lighter, rises, heavier, sinks

• heavier, sinks, lighter, rises

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Makes three fourth part of total air.

• Nitrogen

• oxygen

• Argon

• Water Vapour

The envelope of air that surrounds the earth is called ________

• atmosphere

• hydrosphere

• lithosphere

Moving air is called ________

• wind

• fog

• dew

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6