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'sponge' areas that absorb and store water
river that has a gradient that is insufficient to give it the energy to transport its load...
(also called a hydrological cycle) the cycle of evaporation and condensation that controls the...
a scheme whereby water from one river system is moved to another river basin where less water is...
a small cloud with a flat base and small tufts that look like puffs of cotton wool or...