What do you observe here?
Oxygen is needed for burning.
When we press the inflated balloon, what property of air is seen.
Air can be compressed.
___________ is present in 79% in air.
Nitrogen
____________ layer protects us from the harmful UV rays.
Ozone layer of Stratosphere
What are the uses of carbon dioxide?
Photosynthesis, extinguishes fire, aerated drinks
The mixture of gases that surrounds the Earth is called __________.
Air
The layer of air that surrounds the Earth is called the ____________.
Atmosphere
Name the layers of the atmosphere.
Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere
When we use water gun in the festival of Holi, what property of air do we see?
Air gets compressed.
___________ present in air is essential for life.
Oxygen