5 Certain phenomena have been observed which are believed to be the signs of imminent earthquakes. These include strange behaviors of some animals, the changes in the content of mineral water, etc. The magnetic properties of rocks may also display special pattern before earthquakes happen.
1. paragraph 2__________ A. Earthquakes forecast
2. paragraph 3__________ B. Historical records of earthquakes
3. paragraph 4__________ C. Intensities of earthquakes
4. paragraph 5__________ D. Cause of earthquakes
E. Indications of earthquakes
F. Damaging earthquakes
5. Not all damage during an earthquake is caused by ____________.
6. Not all earthquakes are strong enough to cause ___________.
7. Scientists have been working hard to warn people of ____________.
8. Earthquakes can be predicted by observing ______________.
A. the quake itself
B. accurate prediction