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Earthquake is one of the most destroying natural disasters. Unluckily it often happens in several regions. Recently a horrible earthquake has shaken West Sumatra. It has brought great damages. Why did it occur? Do you know how an earthquake happens?
Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves. It make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly. The rocks are still pushing against each other, but not moving. After a while, the rocks break because of all the pressure that's built up. When the rocks break, the earthquake occurs.
During the earthquake and afterward, the plates or blocks of rock start moving, and they continue to move until they get stuck again. The spot underground where the rock breaks is called the focus of the earthquake. The place right above the focus is called the epicenter of the earthquake.
11. What kind of the text above ?
a. Narrative
b. Explanation
c. Recount
d. News item
e. Anecdote
12. What is earthquake usually caused by ?
a. Another natural disasters
b. Big energy under the rocks
c. Rock underground that sudenly breaks along a fault
d. Seismic waves
e. Two blocks of rock or two plates
13. What is the spot underground where the rock breaks called?
a. The blocks or plates
b. The tsunami waves
c. The earthquake
d. The seismic waves
e. The focus of the earthquakes
14. What is epicenter of the earthquake means?
a. The place \where two blocks of rocks meet.
b. The place right above the focus
c. The place whee seismic waves occur
d. The place where the rocks stop to move
e. The place where the rocks rubbing each other
15. What does happen firstly when two blocks of rock or two plates rub against each other?
a. They are moving another position
b. The rocks break into pieces
c. The plates slide smoothly
d. The rock release seismic waves
e. They pushing against each other, but not moving
Text 4 (Questions number 16-20)
How Desert Remains Dry
These are three possible reason why desert remain dry. These are high mountain barrier, cold ocean current and high pressure system.
When warm air passes over the ocean it pick up moisture in the form of water vapor and this moist air travels over mountain ranges. When begins to rise, the air cool and this causes the water vapor to condense into droplets which falls as rain. When the air reaches the other side of the mountain barrier, it has lost all moisture and so the other side of the mountain remains dry.
Cold Ocean Current
Air passing over old ocean current is cooled and therefore is unable to pick up and hold much moisture. When this cold air mass reaches the warm desert, any moisture in the air is evaporated and so does not fall as rain and so the desert remains dry.
16. What does the text tell about ?
a. How desert remains dry
b. How desert remains wet
c. High pressure system
d. High mountain barrier
e. Cold ocean current