Tag: earth and structure

The continents are separated by large stretches of water called oceans. Oceans are a major part of the hydrosphere. They are all interconnected. The ocean waters are always moving. The three chief movements of ocean waters are the waves, the tides, and the ocean currents. The five major oceans are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Arctic Ocean.

For organisms to live, certain environmental conditions (such as proper temperature and moisture) must exist, and the organisms must be supplied with energy and nutrients (food). All the animal and mineral nutrients necessary for life are contained within Earth's biosphere.

In the troposphere, temperatures decrease by an average of 6.5 degrees Celsius per one thousand meters, which works out to about 3.5 degrees Fahrenheit per thousand feet.