Air & Atmosphere

Find the odd one out

• Nitrogen

• Carbon dioxide

• Helium

• Argon

Green House Effect is caused by

• Ozone

• Oxygen

• Carbon dioxide

• Nitrogen

Gases present in air are given below , arrange them in the decreasing order of their concentration

• Nitrogen , Carbon dioxide , Oxygen

• Nitrogen , Oxygen , Carbon dioxide

• Oxygen , Nitrogen , Carbon dioxide

• Oxygen , Carbon dioxide , Nitrogen

The solid carbon dioxide is commonly called (a)  

Which among the following gases do not contribute to green house effect ?

• Methane

• Carbon dioxide

• Water vapour

• Nitrogen dioxide

Which gas from the atmosphere forms a compound that is useful for growth of plants ?

• Helium

• Carbon dioxide

• Nitrogen

• Water vapour

(a)   is a gas which forms Ozone .

In rainy season brown layer appears on iron objects , which part of air reacts with iron to form this layer ?

• Carbon dioxide

• Nitrogen

• Oxygen

• None of the above

When a person is caught with a fire , he is wrapped in a thick blanket so as to

• Cut off the Oxygen supply

• Cut off the Nitrogen supply

• Keep the body cool

• All the above

The amount of water vapour present in the air is called (a)