Essay On Extinction Of Animals

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The purpose of writing this report is provide the information that the reader needs to know. Providing a clear and precise description of what factors affect the extinction of animals, and how people can help animas to survive.
Global problems are not affect only one individual but the whole world. Problems can’t be solved in one day and require organized efforts from the world community. If people leave these problems unresolved, it will affect all humanity and environment. All in all, global problems are the following: animal extinction, climate change, resource issues, overpopulation and some others.
Speaking about animal extinction, I’d like to mention that it may have been caused by natural occurrences such as climatic heating or cooling or changes in sea levels, scientists also agree that an asteroid striking the earth was to blame for the loss of the dinosaurs. Scientists estimate people are now losing species at 1,000 to 10,000 times every day. It could be a scary future indeed, with as many as 30 to
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Nobody really knows how many animals are in danger of becoming extinct. Noted conservation scientist David Wilcove estimates that there are 14,000 to 35,000 endangered species in the United States, which is 7 to 18 percent of U.S. flora and fauna. The IUCN has assessed that roughly 3 percent of described species worldwide as being threatened with extinction. Frogs, toads, and salamanders are disappearing because of habitat loss, water and air pollution and climate change because of their sensitivity to environmental changes. Increasing demand for water, the damming of rivers throughout the world and invasive species make aquatic ecosystems some of the most threatened on the planet; thus, it isn’t surprising that there are many fish species that are endangered in both freshwater and marine

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