The San Andreas fault is ______.A) an active fault systemB) a place where earthquakes

The San Andreas fault is ______.

A) an active fault system

B) a place where earthquakes have been predicted accurately

C) a place where earthquakes have been controlled

D) the location of the Rocky Mountain

查看答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装赏学吧APP，拍照搜题省时又省心！

更多“The San Andreas fault is _____…”相关的问题

第1题

The New Madrid fault is_____.A．a horizontal faultB．a vertical faultC．a more serious fault

The New Madrid fault is_____.

A．a horizontal fault

B．a vertical fault

C．a more serious fault than the San Andreas fault

D．responsible for forming the Mississippi River

点击查看答案

第2题

The New Madrid fault is______.A) a horizontal faultB) a vertical faultC) a more seriou

The New Madrid fault is______.

A) a horizontal fault

B) a vertical fault

C) a more serious fault than the San Andreas fault

D) responsible for forming the Mississippi River

点击查看答案

第3题

Text 3Everyone has heard of the San Andreas fault, which constantly threatens California a

Text 3

Everyone has heard of the San Andreas fault, which constantly threatens California and the West Coast with earth- quakes. But how many people know about the equally serious New Madrid fault in Missouri.'？

Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe.

Buildings in the area were almost dest oyed. Whole forests fell at once, and huge cracks opened in the ground, allowing smell of sulfur to filter upward.

The Mississippi River itself completely changed character, developing sudden rapids and whirlpools. Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Madrid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earth- quakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington D.C. Scientists now know that America's two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the movement of these two masses suddenly lurches forward.

The New Madrid fault, on the other hand, is a vertical fault; at some point, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now', the rock continues to settle downwards, and sudden sinking motions trigger earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois.

Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but rite scientists say they have no method of predicting when a large earthquake will occur.

31. This passage is mainly about ______.

A) the New Madrid fault in Missouri

B) the San Andreas and the New Madrid faults

C) the causes of faults

D) current scientific knowledge about faults

点击查看答案

第4题

—How can you explain the latest situation？—____________________,I know it is all my faul

—How can you explain the latest situation？

—____________________,I know it is all my fault.

A: Sorry

B; Excuse me