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.
Why is the ocean salty? Oceans cover about 70 percent of the Earth's surface and about 97 percent of all water on and in the Earth is salineâthere's a lot of salty water on our planet. By some estimates, if the salt in the ocean could be removed and spread evenly over the Earthâs land surface it would form a layer more than 500 feet (166 meters) thick, about the height of a 40-story office building .