Which statement is true?
All storms are dangerous.
Only few storms dangerous.
Not all storms are dangerous.
Storms are not at all dangerous.
What percentage of air consist of nitrogen?
78%
88%
98%
68%
When is the air clean?
Morning
Afternoon
Evening
Night
How many breaths do an adult take in a day?
10000
20000
30000
40000
Air is a mixture of many:
Gases
Germs
Dust
Vapour
The breeze that blows from the sea towards the land is the:
Land breeze
Sea breeze
Ocean breeze
Air breeze
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
When the wind is slow, it is called a:
Storm
Drought
Breeze
Humidity
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 formed when water vapor rises up in the sky?
Rain
Clouds
