An ancient device that uses flowing or falling water to create power is called:
Water pump
Wind mill
Dam
Water wheel
What are dug wells?
Open wells
Closed wells
Step wells
Tube wells
What percentage of earth is made up of water?
70 %
60%
80%
50%
Which is a source of fresh water on the earth?
Seawater
Glaciers
Ocean water
Brackish water
Which is an example of run off water?
Sea water
Rain water
River water
Which is the largest river on earth?
The Nile
Mississippi River
Saint Lawrence river
Missouri river
Which is the life supporting gas on earth?
Hydrogen
Carbon
Oxygen
Nitrogen
Which is the primary source of water on earth?
Ocean
Sea
Rain
River
What are baolis?
Underground water resource
Step well
A tribal group
A religious custom
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.
