Read the text below and select the best option for each blank.

earthquakes

an earthquake is a trembling of the earth’s surface and is caused by natural ( within the earth itself. about a million earthquakes are ( each year, but the vast ( are small and cause little or no ( . ( energy of a large earthquake can be 10,000 times more powerful than that of the first atomic bomb. the terrible earthquake that ( the cities of tokyo and yokohama in japan in 1923 caused an estimate of 142,807 deaths. even ( disastrous was an earthquake in china when about 655,000 people died. most earthquakes ( the ocean bed. many of these are harmless, but sometimes tidal waves are set up on the ( . the waves are not high in the middle of the ocean, but they travel quickly, and may be huge as they rush up a shallow shore. such devastating walls of water can ( destruction.

1. a. resources b. strength c. forces d. powers
2. a. shown b. caught c. studied d. recorded
3. a. area b. majority c. number d. amount
4. a. hurt b. injury c. damage d. pain
5. a. although b. yet c. therefore d. similarly
6. a. destroyed b. covered c. threatened d. affected
7. a. more b. if c. though d. so
8. a. stay b. occur c. come d. attack
9. a. ground b. air c. mountain d. surface
10. a. stop b. cause c. influence d. change