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.
When fresh water is added for example by rivers, or precipitation, the salinity of the ocean will decrease. That explains why some oceans are less salty than others Factors like the melting of ice, the inflow of river water, rain, snowfall, evaporation, wind, wave motion and currents affect the salinity. cubic foot of seawater contains about 2.2 pounds of salt, but 1 cubic foot of fresh water from Lake Superior contains 0.01 pound of salt, or about one sixth of an ounce. That means sea water is about 220 times saltier than a fresh water lake.