Beach nourishment is an effective coastal protection measure. Beach nourishment involves replacing sand lost through erosion by adding fresh sand brought from another beach or dredged from the sea floor. This method is capable of transforming a narrow, eroded coast into a wide, sandy beach that ... of carbon dioxide trap heat in the earth's atmosphere, warming up the earth. Deforestation takes place on a massive scale. Between 2000 and 2010, 52,000 square kilometres of forest were lost yearly. However, steps have been taken to reduce this problem. Many countries have imposed laws to restrict...

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... aggressive when it comes to the territories they claim as their own. Due to this territorial behavior, they happen to injure or kill many people every year who may be lost or purposefully wander into their area . These animals are the third largest land animal in the world yet they can easily outrun any human they could be put into competition ... ...

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... who delivers the information is represented by Albert Gore Jr., an American politician who served as the 45th Vice President of the United States and also ran for President and lost in the 2000 presidential elections. The documentary focuses on a global issue which threatens our planet: global warming along with the causes and the frightening possible effects of this unwanted process ... ...

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• Grade Level: Undergraduate

... mastodons to survive a drought. Because of their size and weight, the Ice Age Proboscidea had longer gestation periods, which meant lower birth rates. If too much of the population was lost due to a severe drought, the population would be at risk. Also in the same time period of 10,000-15,000 years ago, humans began to populate North America; humans ... ...

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