... ozone at ground level are dangerous to breathe because ozone is a very reactive gas and can damage lung tissue. It can also damage plants and buildings. According to scientists, certain man-made chemicals are major contributors to the problem of ozone depletion. "These chemicals are called Ozone-Depleting Substances (ODS) and include many gases containing chlorine and bromine, such as: chlorofluorocarbons ... zooplankton are highly sensitive to UV radiation, as they lack the protective UV-B absorbing layers that higher forms of plants and animals have. More UV-B radiation reduces the amou...

• Word Count: 1505
• Approx Pages: 6
• Grade Level: Undergraduate

... ozone at ground level are dangerous to breathe because ozone is a very reactive gas and can damage lung tissue. It can also damage plants and buildings. According to scientists, certain man-made chemicals are major contributors to the problem of ozone depletion. "These chemicals are called Ozone-Depleting Substances (ODS) and include many gases containing chlorine and bromine, such as: chlorofluorocarbons ... zooplankton are highly sensitive to UV radiation, as they lack the protective UV-B absorbing layers that higher forms of plants and animals have. More UV-B radiation reduces the amou...

• Word Count: 1470
• Approx Pages: 6
• Grade Level: Undergraduate

... from another. Darwin's theory of natural selection is really the process of nature that results in the fit or the strongest will survive and reproduce. Darwin observed that wild animals and plants showed variations just as domesticated animals and plants did. He filled his notebooks with records of height, weight, color, claw size, tail length, and other characteristics among members of the same species. He also observed ... that high birthrates and a shortage of life's necessities forced organisms into a constant "struggle for existence," both against the ... ...

• Word Count: 2843
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate