... hot spots." These " hot spots " are on opposite ends of the equator. It is the heat of the surface that makes it impossible for Mercury to have any type of atmosphere. Mercury orbits the sun once every 88 days and has a true rotation period of 58.6 days. " It is the closest planet to the sun and therefore orbits faster than any other planet " (Thompson/Turk, 542, 1993). It is said ... argon. This is yet another thing which makes Venus different from Earth. The surface of Venus is quite a bit like that of the Earth. The surface has volcanoes and smooth plains. " Much of the volcanic acti...

• Word Count: 1722
• Approx Pages: 7
• Grade Level: High School

... and why such changes occurred, showing us the various consequences of such changes on our cities, our seas, our lakes, our way of life ., explaining us that environmental degradation « could be sometimes » reversible, the author invites readers to make their own evaluation of the environmental alterations he discusses. Sometimes, he tries to show us the positive side of changes. Much of the change results from economic development and projects ... , to hold back the flow of the Euphrate river' which flows towards Syria and Iraq, to make Syrian stop backing the Kurd separatists in T...

• Word Count: 1259
• Approx Pages: 5
• Grade Level: Undergraduate

... flow from Mont Pelee, on the Caribbean island of Martinique. This catastrophic event took place in nineteen hundred and two with very little warning. Other hazards from volcanoes are lahars otherwise know as mudflows. These can form many different ways each as destructive as the last. They can form when hot lava melts a glacial or when a pyroclastic flow meets a river. These have also caused huge ... eruption occurred literally blowing up one side of the massive Mount. Magma moved high into the cone of Mount St. Helens creating a bulge on the north side outward by at least one hundred a...

• Word Count: 1450
• Approx Pages: 6
• Has Bibliography
• Grade Level: High School

... hot spots." These " hot spots " are on opposite ends of the equator. It is the heat of the surface that makes it impossible for Mercury to have any type of atmosphere. Mercury orbits the sun once every 88 days and has a true rotation period of 58.6 days. " It is the closest planet to the sun and therefore orbits faster than any other planet " (Thompson/Turk, 542, 1993). It is said ... argon. This is yet another thing which makes Venus different from Earth. The surface of Venus is quite a bit like that of the Earth. The surface has volcanoes and smooth plains. " Much of the volcanic acti...

• Word Count: 2403
• Approx Pages: 10
• Grade Level: High School