There are a whole of three natural sources of water. They are categorized as rain water, underground water and surface water. Here is a look at each and what provides these sources. Rain water contains other references such as snow and additional types of precipitation.
Water is one of the natural resources, which are found in an adequate amount. It is an important source for the existence of life on the planet earth. It is widely used for various purposes such as drinking, washing, bathing, cleaning, cooking, irrigation, and other industrial and domestic uses.
<h3> Which is the enormous water resource on Earth?</h3>
Oceans, which are the biggest source of surface water, comprise approximately 97 percent of the Earth's surface water.
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Food chains don’t have infinite links, because only about 10% of energy is passed upwards in trophic levels. So a mouse could eat 10 grasshoppers, but a hawk would need to eat 100 mouses to get the same energy
Answer:
The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.
Explanation:
