problem 1: Illustrate the main types of water use?

problem 2: How can we decrease the water demands in agriculture and households?

problem 3: Describe the types of water resources present with earth.

problem 4: describe the path a molecule of water might follow via the hydrological cycle from the ocean to land and back again.

problem 5: How can we employ the earth’s water more sustainably?

problem 6: What percentage of the earth’s total volume of the water is simply available for use by the people?

problem 7: List all the unique properties of the water.

problem 8: List all the four causes of water scarcity.