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제 목 |
The Museum of National History |
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작성자 |
이원준 |
작성일 |
10-07-12 |
조회 |
7043 |
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Today, I went to the Museum of National History. The Universe was born about 15billion years ago during Big Bang. About 4.6billoin years ago, earth was formed. Long time ago, the contients were connected as one piece called Pangaea.There are 8 planets(Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus , and Nepture) When the plnet turns units its axis, it is called a rotation.This takes one year. Baekdu Mountain and Halla Mountain on the Han pennisula were made by volcanic eruption. Baekdu and Halla Mountain are inactive volcanoes. CyanoBacterias are living cells that produce oxygen through photosynthesis. Herbivorous dinosaurs protected themsellves with their horns, which acted as weapons and armor. Troodons had the most advanced brains. Acrocanthosaurus were frightening and ate meat. An Elephants trunk is made up of numerous muscles. It works like a human's hand.Elephants breath through it. It helps them eat food and pull out grass.They also use it to water their bodies. In our country, the astronomical chart was already drawn during the period of Goguryeo. There is a famous astronomical chart from the Joseon Dynasty.Metror is a chip of a comet. An opening in the earth's crust through which magma is ejected is called a volcano. Thank you for listenig to my speech!! |
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