EVERYDAY SCIENCE

Detailed explanation-1: -Water covers about 71% of the earth’s surface. 97% of the earth’s water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling). 3% of the earth’s water is fresh.

Detailed explanation-2: -Planet Earth, also known as the world, blue planet or water planet, has about 70% of its surface covered by water. The existence of this substance in its liquid state, together with the presence of oxygen and the ability to recycle carbon dioxide make Earth a planet with unique characteristics.

Detailed explanation-3: -About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.

Detailed explanation-4: -Groundwater is water that exists underground in saturated zones beneath the land surface. The upper surface of the saturated zone is called the water table.