... by this is that you would not have a star without all of these elements working together to oppose pressure and gravity. Joseph Silk simply puts it: "For a star, life is a precarious balance between the inward pull of gravity and the outward pressure exerted by the hot gas in the interior as it tends ... We all should know what a black hole is, but do you know where they come from? Black holes come from stars that have collapsed one itself and due to the constant pull of gravity these holes form. They are black because of the nothingness of the interstellar medium (everything that you se...

• Word Count: 1520
• Approx Pages: 6
• Grade Level: High School

... cleaning agents, insulators, Styrofoam's, coolants, auto air conditioners, home air conditioners and refrigerators (see next the pie chart on next page for more information). Majority of CFCs contributing to depletion is the auto air conditioners in our cars. The CFCs inside auto and home air ... danger because of the diminishing supply of smaller acquatic creatures. Animals, the most innocent victims of the ozone depletion will have to pay for their lives first. With exposure to ultraviolet radiation animals will eventually develop tumors similar disease to humans, such as: eye tumors,...

• Word Count: 2176
• Approx Pages: 9
• Has Bibliography
• Grade Level: Undergraduate

... cleaning agents, insulators, Styrofoam's, coolants, auto air conditioners, home air conditioners and refrigerators (see next the pie chart on next page for more information). Majority of CFCs contributing to depletion is the auto air conditioners in our cars. The CFCs inside auto and home air ... danger because of the diminishing supply of smaller acquatic creatures. Animals, the most innocent victims of the ozone depletion will have to pay for their lives first. With exposure to ultraviolet radiation animals will eventually develop tumors similar disease to humans, such as: eye tumors,...

• Word Count: 2237
• Approx Pages: 9
• Has Bibliography
• Grade Level: Undergraduate

... other industrial chemicals that are now destroying this layer and causing big worries and health risks to all living things. There have been many holes discovered on the layer, and scientist are deep into research to find new ways to solve this problem. What follows, will discuss the ... first discovered that chlorofluorocarbons (CFC's) potentially could destroy the ozone layer, and since CFC's had been in use as refrigerants, coolants, and propellants for aerosol cans since the 1930's, there was could have a lot of damage already done. However, only in the 1070's, the dramatic loss of ...

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