Which gas is used by plants during day?
Oxygen
Carbon dioxide
Nitrogen
Hydrogen
Oxygen is NOT used by:
Plants
Animals
Humans
None
Which sentence is FALSE?
Air is all around us
Air fills things
Air has no weight
Air moves things
Which among the following can NOT uproot trees?
Breeze
Gale
Storm
Hurricane
Which of the following is not a reason for air pollution?
Cigarette
Factories
Vehicles
Electric light
Why do bubbles appear when an empty glass is pushed upside down to a tub of water and tilted?
Because there is no air inside the glass
Because there is bubble inside the glass
Because there is no air inside
Because the glass is empty
Which among the following is NOT strong?
Which instrument tells us the direction of wind?
Wind vane
Wind vain
Wind vein
Wind wain
A football full of air is heavier than an empty football.Why?
Air has weight
Air is everywhere
What is all around us?
Snow
Water
Air
Wind
