Why should not we waste water?
Because there is lot of water on earth
Because there is no water on earth
Because water resources on earth are getting dry
Because lot of water is getting polluted
What causes storm?
Slow wind with rains
Strong winds with thunder and rains
Dark clouds and rains
Heavy rains
Which is the main source of water on earth?
Oceans
Seas
Ground water
Rain water
What causes change in weather?
Sun
Water
Light
Wind
When is the air clean?
Morning
Afternoon
Evening
Night
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
Which breeze blows from the land towards the sea at night?
Land breeze
Sea breeze
Ocean breeze
Air breeze
The process by which a substance change from solid state to liquid is called:
Melting
Freezing
Evaporation
Condensation
What percentage of air consist of nitrogen?
78%
88%
98%
68%
What is formed when water vapor rises up in the sky?
Rain
Clouds
Breeze
Storm
