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4 Results for Quadraric Formula

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1. CFCs And Alternative Aerosol Propellents

... . There he discovered "two inert, nontoxic, nonflammable gasses with excellent refrigerant properties" (Fisher). These two gasses were dichlorodifluoromethane and trichloromonofluoromethane, which are both simple variations of methane. Methane has the formula CH4, where there are four hydrogen molecules for each carbon molecule. In dichlorodifluoromethane, chlorine and fluorine replace the hydrogen to have the ... formula CCl2F2. In trichloromonofluoromethane, the four hydrogen are kicked out and replaced with three chlorines and only one fluorine. Combined together they create chloroflu...

  • Word Count: 1942
  • Approx Pages: 8
  • Has Bibliography
  • Grade Level: High School

2. The Ozone Layer

... containing chlorine such as CFC's, but also compounds containing bromine, other related halogens and also nitrogen oxides (NOx). The Ozone Layer Chemical processes Ozone is a naturally occurring trace gas, chemical formula O3. In the stratosphere, it serves to absorb many harmful solar UV rays. The atmosphere is about 1000 km (600 miles) thick. Atmospheric layers, as measured in distance from the ... ...

  • Word Count: 2476
  • Approx Pages: 10
  • Has Bibliography
  • Grade Level: High School

3. The Environmental Apocalypse is Real, Real Cheap.

... on the basis of field observations that when a patch of habitat is reduced by 90 percent, the numbers of species living in it eventually declines by about half. Using this formula, Dr. Wilson has calculated that at the rate at which tropical rain forests are being destroyed, 10 percent to 22 percent of the rainforest species will be lost in the ... ...

  • Word Count: 1324
  • Approx Pages: 5
  • Has Bibliography
  • Grade Level: High School

4. acid rain

... Reduction of Sulfur Eighteen countries including Canada have ramified this protocol.6 The goal of this protocol is to reduce the area where acid rain exceeds the critical loads according to a formula that minimizes the total cost of reduction.6 The UN-ECE is also trying to negotiate another protocol to address acid rain as well as smog and other effects. V. How to ... ...

  • Word Count: 2153
  • Approx Pages: 9
  • Has Bibliography
  • Grade Level: High School
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