We need water to:
Keep our self clean
Wash clothes
Cook food
All of these
Which of the following is a source of ground water?
Lakes
Ponds
Glaciers
Hand pump
Dirt thrown into lakes, rivers and ponds:
Contaminates it
Makes it fresh
Adds oxygen
Adds nutrients
Which of these are the natural sources of water?
Rain
Dams
Tube wells
Canals
How can you prevent the wastage of clean water?
Closing the taps when not required
By throwing dirt into lakes, rivers and ponds
By mixing it with dirty water
None of these
Which of the following is a source of surface water?
Wells
Water present on the surface of the earth is referred to as:
Surface water
Ground water
Table water
Water table
Drinking dirty water makes us:
Healthy
Sick
Fat
Why the river water is is contaminated?
Throwing the dirt from home and factory
Mixing with ground water
Because of rain
From the following things name the one that is not required to prepare a filter
Plastic bottle
Sand
Stones
Rubber
