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地球也有年龄。地球的年龄有多大呢?科学家说大约有46亿岁,就是说,地球从最初形成一直演变到今天,已经有46亿年的历史了。地球演变的历史是极其漫长的,这与我们当前所理解的时间概念来讲,简直不可同日而语。随着人类社会的不断发展和科学技术水平的逐步提高,人们对地球的认识也日趋成熟。为便于研究,科学家们根据不同的特征按照从老到新的顺序将地球的演变历史划分为四大阶段,即冥古宙、太古宙、元古宙和显生宙,其中,显生宙可分
Earth is also of age. How old is Earth? Scientists say about 4.6 billion years old, that is, the Earth has evolved from its initial formation to today, 4.6 billion years ago. The history of the evolution of the earth is extremely long, which is almost impossible to say in terms of the notion of time we now understand. With the continuous development of human society and the gradual improvement of science and technology, people’s understanding of the Earth is also becoming more and more mature. In order to facilitate the research, scientists divided the evolutionary history of the earth into four major phases according to different characteristics according to the order from old to new, that is, the ancient universe, the Archean, the Proterozoic and the Phanerozoic. Among them, the Phanerozoic Minute