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16. Water

More than 3/4 part of our earth’s surface is covered with water. It means that
th
there is plenty of water on the earth. But we cannot use all the water for drinking.
The oceans contain over 97% of all water.
97% Oceans
Ocean water is salty and unsafe to drink. 2% Glaciers

There is another 2% of water in the form of

glaciers that cannot be drunk. We can only

drink 1% of the water that is found in lakes,

rivers and other freshwater bodies.

Did You
Know? If there is one bucket of water on Earth, then
there are only two spoonfuls of water available 1% Freshwater bodies
for human consumption. Only 1% of the water we
consume is for uses other than drinking.

Sources of Water

Rainwater is the most important source of water. This water flows and gets

collected in oceans, seas, lakes and rivers. These are all natural sources of water.

Ocean Sea Lake River

Ground Water

Some of the rainwater seeps down into the ground. It gets collected in the layers

of the rocks and the soil. This is called groundwater. We dig holes in the ground to

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