OZONE LAYER The ozone is made from oxygen, but for billions of years there was no actuall oxygen in the earth's atmosphere. The earth's primitive atmosphere is said by scientist that it was composed of water vapor,carbon dioxide,sulfur dioxide, nitrogen,and other gases released by volcanic and oth...

Introduction The environment of planet earth is heavily dependent on a stable climate. The stability of this climate has been continually compromised since the beginning of the industrial revolution. Poor pollution controls and the ever-increasing human industrial activity are causing...

The Greenhouse Effect The greenhouse effect is an increase in the atmospheric temperature caused by increasing amounts of greenhouse gases. These gases act as a heat blanket insulating the Earth's surface absorbing and trapping heat radiation which normally escapes from the earth. They includ...

Scientists have predicted that the earth's climate will change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases – primarily carbon dioxide, methane, and nitrous oxide. The global warming property of these gases is und...

Mars, otherwise known as the "red planet", is approximately 227,940,000 km from the sun (Arnett 2000). It has two moons, Phobos and Deimos, which are believed to have been asteroids captured by the planet's gravity (Sheehan 220). Mars is the 4th closest planet to the sun and it ...