AP BIOLOGY

Detailed explanation-1: -Only 3% of water present on earth is freshwater, out of which 2% is frozen in the form of ice caps and glaciers. We can only use rest 1% water for our daily needs.

Detailed explanation-2: -In the first bar, notice how only 2.5% of Earth’s water is freshwater-the amount needed for life to survive.

Detailed explanation-3: -Earth’s fresh water : Of all the water that exists on our planet, roughly 97% is saltwater and less than 3% is freshwater.

Detailed explanation-4: -Only about three percent of Earth’s water is freshwater. Of that, only about 1.2 percent can be used as drinking water; the rest is locked up in glaciers, ice caps, and permafrost, or buried deep in the ground. Most of our drinking water comes from rivers and streams.

Detailed explanation-5: -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.