How is wind produced?
When Sun rays are blocked by the clouds
When cool air rises up
When water vapor in the air rises up
When hot air rises up
What percentage of air consist of nitrogen?
78%
88%
98%
68%
Which breeze blows from the land towards the sea at night?
Land breeze
Sea breeze
Ocean breeze
Air breeze
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.
What is atmosphere?
Mixture of gases that surrounds the earth
Mixture of gases that surrounds the sun
Mixture of gases that surrounds the moon
Mixture of gases that surrounds the planets
How many breaths do an adult take in a day?
10000
20000
30000
40000
Air supplies us with:
Hydrogen
Carbon
Nitrogen
Oxygen
When is the air clean?
Morning
Afternoon
Evening
Night
What causes storms?
Slow wind with rains
Strong winds with thunder and rains
Dark clouds and rains
Heavy rains
Which is the essential gas for all living things?
