Monday, June 9, 2008

Exam 2

Geosphere
The term Geosphere is often used to refer to the densest parts of Earth, which consist mostly of rock. Geosphere refers to the solid parts of the Earth and is used along with atmosphere, hydrosphere, and biosphere to describe the systems of the Earth.


Hydrosphere
Earth's hydrosphere consists of water in all forms. the ocean, other surface waters including inland seas, lakes, and rivers, rain, underground water, ice, (glaciers and snow) and atmospheric water vapor (clouds).

Atmosphere

An atmosphere is a layer of gases that may surround a material body of sufficient mass. It contains roughly 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases. It is also known as air.

Biosphere
The biosphere is the part of the Earth, including air, land, surface rocks, and water, within which life occurs.


People should try to keep the earths major systems clean. It is for the common good of society to keep them clean. Also for the pursuit of happiness people will be unhappy if they live in a trashy environment. Deforestation results from removal of trees without sufficient reforestation, and results in declines in habitat. It can ruin the biosphere. Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort living organisms, and damage the environment. By analyzing the cleanliness of the four systems we can determine the impact humans have on the environment.














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