The end of dinosaurs思维导图
The end of dinosaurs
树图思维导图提供 The end of dinosaurs 在线思维导图免费制作，点击“编辑”按钮，可对 The end of dinosaurs 进行在线思维导图编辑，本思维导图属于思维导图模板主题，文件编号是：3d65dab834dbcd99bfce0d9596e40fdd
思维导图大纲
The end of dinosaurs思维导图模板大纲
Asteroid hitting the earth
the force of 100000 hydrogen bombs
a deadly winter
such a strong force that it created a hole
cause enough dust to cover the entire earth and block out sunlight for months
destroyed three-quarters of all living organisms on earth
cause at least three months of complete darkness
devastating to animals as large as the dinosaurs
Iridium----evidence of a huge hole was found in Mexico思维导图模板大纲
stopped all sunlight reaching the earth and created storms of acid rain as well as earthquakes
since the disappearance of the dinosaurs that larger mammals have appeared on earth
eading eventually to the appearance of the most dominant of all mammals -man!
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