Earthquakes are responsible for every year a large number of deaths and a vast amount of destruction in various parts of the world. Most damaging of những Earthquakes occur in a narrow belt hoặc surrounds the Pacific Ocean mà hay in a line extends from Burma mà to the Alps in Europe. Some of the destruction caused by the quake is trực Itself. An example of this is the collapse of buildings as a result of the quake Itself. Other damage results from landslides or major fires Initiated by the quake mà.
These are about a million quakes a year. Fortunately, tuy nhiên, not all of Them are destructive. The intensity of an earthquake is measured on the Richter Scale, mà goes from Upward. The Highest recorded to date is 8.9 scale. Major damage from quakes Generally Occurs Upward Ranging from 6.0.
The actual cause, of the quake Itself is the breaking of rocks at or below the earth's surface. This is Produced by pressure mà Scientists believe lẽ Due to a number of lý, two of mà are the expansion and contraction of the earth's crust and continental drift.
In order to limit the damage and to Prevent some of the apprehended quả from Earthquakes, Scientists are working on Ways to enable accurate prediction. Special instruments are used to help người record, for example, shaking of the earth. Scientists are trying to find methods to indicate added sẽ enable the exact time, location and size of an earthquake.
Certain phenomena được mà Observed believed to be the signs of imminent Earthquakes. These include some strange behaviors of animals, the changes in the content of mineral water, etc. The magnetic properties of rocks sewing am also display special pattern Earthquakes happen all before.
1, paragraph 2______
2, paragraph 3______
3, paragraph 4______
4, paragraph 5______
A. Earthquakes forecast.
B. Historical records of Earthquakes.
C. Intensities of Earthquakes.
D. Cause of Earthquakes.
E. Indications of Earthquakes.
F. Damaging Earthquakes
5, an earthquake Not all damage is caused by______ khi
6, Not all are strong enough to cause______ Earthquakes
7, Scientists working hard to warn được người of______
8, Earthquakes can be PREDICTED by observing______
A. the quake Itself
B. accurate prediction
C. damage of property and loss of lives
D. a possible The earthquake
E. the unusual behaviors of some animals
F. behaviors of human beings provides the un the strong
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