... form of ultraviolet light from the sun, known as UV-B. With the erosion of the ozone layer, more UV-B rays can reach the Earth's surface, and these rays are known to cause genetic mutations in certain species. (UV-B is also the sun risk for humans.) Biologists have recently identified a dramatic decline in the world population of amphibian species (frogs, toads, etc.) The reason for this is not ... clear, but it has been proposed that the cause is the depletion of the ozone layer. Amphibians typically lay thin-shelled eggs, and the theory is that UV-B rays are able to ... penetrate this...

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• Approx Pages: 6
• Grade Level: Undergraduate