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.
How much water is there? Water covers nearly three-fourths of the Earth's surface and is mostly found in the oceans and seas. That sounds like a lot of water, right? Well, it is, but we can't drink much of it. Since more than 97% of the water on earth is in the form of salt water, only a tiny amount of water is usable as fresh, drinking water. Human beings cannot drink salt water. We need fresh water to survive. So, just exactly how much fresh water is there? Two percent (2%) of the water on Earth is in the form of frozen fresh water, but it is not usable by human beings. Only about 1% of the total water on Earth is in the form of fresh water that is found in lakes, streams, rivers, soil and underground reservoirs or aquifers.