The form of energy associated with the position or arrangement of objects in a system. Second Law of Thermodynamics. States that no enrgy transformation is perfectly effiecients; in a closed system, some energy from every transformation will always be lost as heat, with a corresponding increase in entropy.
When we think of water, we think of rain, lakes and rivers. because they are parts of our daily lives. Water is also found in the atmosphere, underground, in. snow, ice, seas and oceans. It is in constant motion and recycles itself through the Water Cycle. Most of the earthâs water is salty or permanently frozen. 95.1% of water on earth is estimated. to be salt water. Fresh water total only 4.9% of all water on earth. Fresh water is found in. ice, lakes, rivers, streams and underground.
The Earthâs surface is 70% water. Of that 70% only 2.5% is drinkable, fresh water. Nearly 70% of that drinkable water is frozen in the icecaps of Antarctica and Greenland. The other 29% is locked in deep underground aquifers not accessible to humans. That leaves us with less than 1% of accessible fresh water on Earth. These sources come in the form of lakes, rivers, and precipitation run off. That means of all of the water Earth has, both fresh and salt water, only 0.007% is accessible for humans to drink. I thought that it would be an interesting idea for this issue to go over the largest sources of fresh water on the globe for our top ten list.