Thursday, June 5, 2008

Final Exam




The geosphere (the part of earth in which there are rocks and minerals), the atmosphere (the part of earth that protects us from the sun), the hydrosphere (all the water on earth, including bodies of water, water vapor, ice, etc.), and the biosphere (where the humans and animals live).
The impact that we humans have on our planet is extreme. For example, Deforestation is a huge problem. When we cut down trees, we reduce the population of many animal species, and we release tons of CO2 into the atmosphere. Like I said earlier, the atmosphere protects the earth and it's inhabitants from the sun. So if the atmosphere gets damaged in any way, the earth will be exposed to the ultra-violet rays of the sun. This will probably burn earth to a crisp. The more trees we cut down the closer we get to destroying ourselves.

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