Question

What is the main source of potable water available on the Earth?
1. Precipitation
2. River
3. Cyclone
4. Concentric layer

Answer 1

Hint:
Potable water is the drinkable water available on Earth. The main source of potable water can be found in the surface water, collected rainwater, and groundwater.
Water is the most important resource that supports life on earth, but very few realize how difficult it is to get fresh water that is safe and potable.
Water occupies three-quarters of the surface of the Earth, in all its forms.

Complete answer:
Earth is known as the Blue Planet as 71 percent of the Earth’s surface is covered with water. It also exists as water vapor and below the land surface.

Earth has an abundance of water, but only about 0.3 percent is usable by human beings, which is a very small amount but, even that is unattainable. The other 99.7 percent is available in soils, icecaps, and oceans and floating in the atmosphere.

Most of the water comes from rivers, the visible water bodies are surface water, and the water available in aquifers and underground as soil moisture is freshwater. Humans can use groundwater as well as surface water.

Precipitation is the main source of potable water on Earth. The percentage of water present in the atmosphere is 0.001 percent.

Thus, option 1. Precipitation is the correct answer.

Note:
Groundwater can also feed the streams. This is the reason why it is kept flowing even when the precipitation is not present.
Precipitation is the liquid formed in the atmosphere and falls back to the Earth, and it comes in many forms such as rain, snow, and sleet.