An ancient device that uses flowing or falling water to create power is called:
Water pump
Wind mill
Dam
Water wheel
When is World Water Day celebrated?
22nd March
23 rd March
24th March
22nd May
Which is the largest river on earth?
The Nile
Mississippi River
Saint Lawrence river
Missouri river
Which are the largest water bodies on Earth?
Oceans
Rivers
Lakes
Seas
Which statement is true?
Plants use water to prepare food for themselves.
Plants don’t need water.
Plants need less water than animals do.
Plants make food without help of water.
Which is the life supporting gas on earth?
Hydrogen
Carbon
Oxygen
Nitrogen
Which is a source of fresh water on the earth?
Seawater
Glaciers
Ocean water
Brackish water
Earth is known as blue planet:
Because it is blue in colour
Because it reflects more blue colour
Because it has more land forms
Because it has so much of water in it
Which is the best way of irrigating crops?
Open wells
Closed wells
Step wells
Canals
What helps to transport food and chemicals to the cells in human body?
Blood
Water
Carbon dioxide
