SUCI
A. crack
1. What causes an earthquake?
A. Forces above earth.
B. Tremendous warping of the crust
C. Intense heat on the surface of the earth
D. Intense movement of liquid materials underneath.
2. What occurs when layers of rocks slip along a fault?
B. joint
C. eruption D. earthquake
3. Why does magma rise to the surface and the surrounding rocks around it
do not?
A. Magma is lighter or less dense.
B. Magma causes pressure.
C. Surrounding rock is lighter or less dense than the magma.
D. Magma is hot.
4. Which of the following could be the signs of a volcanic eruption?
I. Release of smoke, sulfuric dioxide and other gases
II. Change in shape, tilt or elevation of the volcano
III. Change in water level and temperature of underground water
IV. Shaking or trembling in areas near the volcano is felt.
A. I and II
C. I, II, III
B. II only
D. I, II, III, IV
5. The following are effects of volcanic eruption EXCEPT
A. Lahar flow
B. Scattered rocks and debris
C. Toppled down buildings
D. Surrounding areas of volcano covered with ashes
6. Engineers are designing a 10-storey building in an area where seismic
activity has been declared. They are planning to make sure that the
building can withstand an earthquake. Which would be the most effective
procedure for this?
A. Apply simulated earthquake forces to a scale model of the building.
B. Apply simulated earthquake forces during the construction of the
building​