What causes storms?
Slow wind with rains
Strong winds with thunder and rains
Dark clouds and rains
Heavy rains
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 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
Which is the essential gas for all living things?
Hydrogen
Carbon
Nitrogen
Oxygen
Which breeze blows from the land towards the sea at night?
Land breeze
Sea breeze
Ocean breeze
Air breeze
Which is the use of wind?
To create electricity
To give fresh air
To move things from one place to another
To destroy pests
Which is the oldest human carrying flight technology?
Air balloon
Aeroplane
Helicopter
Rocket
The mixture of gases that makes up the Earth's atmosphere is called:
Water vapour
Air
What percentage of air consist of nitrogen?
78%
88%
98%
68%
When is the air clean?
Morning
Afternoon
Evening
Night
