Think about the images of common wells and step well.
If the surface is not having soil, it will not allow water to soak into it.
Think about pictures that comes to your mind when you think of that place.
What out of the given option do you think you cant live without.
Have you tasted the water of rivers, is it salty?
At some places people are uneducated.
Think of the device that helps to create pressure for suction of liquids.
Video Lessons for CBSE class 5 evs
Worksheets for CBSE class 5 evs
Support Services for CBSE class 5 evs
Regular Classes for CBSE class 5 evs
Live Coaching for CBSE class 5 evs