cause Deforestation has killed off more species than we can count. Five great mass extinctions have changed the face of life on Earth. These are no ordinary eruptions - they are sustained eruptions that emit millions of tonnes of magma for up to 1 million years! Human extinction - Wikipedia The ultimate cause of large scale extinction is global warming or cooling, usually caused by one of the other events mentioned above. 6. 某化学兴趣小组对一石灰石样品中碳酸钙的质量分数进行实验测定，取12g样品于烧杯中加入足量的稀盐酸，放在天平上观察并记录反应过程中天平示数变化如下： … Climate Change is caused by a number of things. The brown tree snake is an exotic species that has caused many extinctions on Pacific islands such as Guam. What's likely to cause human extinction – and how can we avoid it? Causes of Extinction: 5 Actions that Are Killing off Species Climate change EXTRAS What is an extinct species? The five biggest mass extinction events in Earth’s history, and most of the smaller extinction events, were driven by rapid climatic change. fitness) depends on how well-adapted that species is to its environment. Anthropogenic climate change refers to the emission of greenhouse gases by human activities while natural climate change refers to the climate changes caused by many natural factors including the changes in the sun, volcanoes, Earth’s orbit. (8分)Today, many species of animals and plants are endangered.
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