| Throughout Earth's history the continents have been moving around, pushed by deep currents (1) of semi-liquid rock. About 400 million years ago all the land masses (2）came together to form one single continent. In those days plants had just started coming onto land, along with primitive scorpion-like (3) creatures.
The huge land mass called Pangea (4) formed when the two smaller continents Gondwana (5) and Laurasia (6) slowly merged , a process which took millions of years. After more millions of years, Pangea began to break apart and some of the continents we have today were formed.
About 95 million years ago, today's continents of Africa and South America split apart (7), forming the Atlantic Ocean. About 55 million years ago, the subcontinent (8) of India pushed up (9) against southern Asia, forming the magnificent Himalaya mountains (10).
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(1) 水流
(2) 陆地板块
(3) 类似于蝎子的
(4) 泛古陆，联合古陆 (指假定的古代超大陆)
(5) 冈瓦纳大陆 (被认为曾在南半球存在过的大陆，在中生代或古生代后期分裂成阿拉伯半岛、非洲、南美洲、南极洲、澳洲和印度半岛等)
(6) 劳亚古陆 (远古曾经存在于北半球的推想大陆，约在古生代末期分裂为北方诸大陆)
(7) 分裂
(8 次大陆
(9) 上升
(10) 喜马拉雅山 |
