The mixture of gases that makes up the Earth's atmosphere is called:
Water vapour
Air
Nitrogen
Hydrogen
How does air get polluted?
By dumping garbage in water bodies
By smoke from vehicles and factories
By chemicals getting thrown into the soil
By chemicals getting thrown into water bodies.
Which is the essential gas for all living things?
Carbon
Oxygen
Which breeze blows from the land towards the sea at night?
Land breeze
Sea breeze
Ocean breeze
Air breeze
What causes storms?
Slow wind with rains
Strong winds with thunder and rains
Dark clouds and rains
Heavy rains
Which is the use of wind?
To create electricity
To give fresh air
To move things from one place to another
To destroy pests
When the wind is slow, it is called a:
Storm
Drought
Breeze
Humidity
Which is the fastest growing source of electricity in the world?
Hydropower
Geothermal
Solar
Wind
Air supplies us with:
What percentage of air consist of nitrogen?
78%
88%
98%
68%
