Rainwater percolates through different layers of soil by the process of ____.
The continuous exchange of water between oceans, land and atmosphere occurs through _____.
Farmers in our country depend on _____ water for agriculture.
____ is an artificial wall built across a river in order to regulate water flow.
True or False
As we go to higher altitude the external pressure on the water is decreased, therefore the water will boil at a lower temperature so it will take more time to cook anything.
