A volcano is a kind of mountain.The mountain has an1at the top. It allows hot liquid to2from the Earth`s crust(地壳). There are different types of volcanoes. Some are3. They can erupt(喷发) at any time. Others are sleeping. They haven’t erupted in a while. Volcanologists are sci...
A.To predict the future of volcanoes.B.To prove humans’ adaptive capacity. C.To learn about early human life better.D.To analyze the form of volcano eruption. 4. What can be inferred from the last paragraph? A.Yellowstone volcano won’t erupt any time soon. ...
This book will be of interest to those who are fascinated by volcanoes and would like to read about a first-hand account of the awesome power of nature’s most engaging spectacle. Today, the volcano lies dormant once again, and only occasionally does the peaceful, easy-going life of a ...