Are there regions where people do not get adequate amount of water? How do they manage? Open Answer »
Explain the process of rooftop rainwater harvesting with the help of a suitable diagram. Open Answer »
Dissolve two spoons of common salt in half a cup of water. Now if you want to get the salt back, what will you do? Open Answer »
Most of the water that falls on the land as rain and snow, sooner or later goes back to a sea or an ocean. Explain how it happens. Open Answer »
