20. Which of the following clearly distinguishes active from
inactive volcano?
A. Active volcano is young while inactive is old.
B. Active is a volcano with many records of eruption since
the beginning of time while inactive had zero record.
C. Active volcano is a volcano that has had at least one
eruption during the last 10 000 years while inactive has no
eruption since the beginning of recording.
D. Active volcano is a volcano that erupts regularly while
inactive eruptive is the one that did not erupt for a long
time but supposed to erupt again.
21. How will you distinguish a cinder volcano from a composite
volcano? Based on its
1. height
III. steepness of the slope
II. shape
IV. kind of materials in the surrounding
A. I-11-111 B. II-III-IV C. I-II-IV D. I-II-II-IV
22. Which could happen if a volcano erupts continuously for
hours and is accompanied by a tropical storm?
A. The tropical storm will become stronger and flooding will
happen.
B. The volcano will continue to ooze out highly viscous lava
in greater volume.
C. Lahar will form and will cause flooding in the areas
surrounding the volcano.
D. Lava will react to water producing toxic substance that
will degrade the quality of soil.
23. What volcano is to form from highly viscous lava with low
amount of gas ejected from a fissure in the surface of
Earth?
A. cinder
C. shield
B. composite
D. stratovolcano
24. How will a volcano with high amount of dissolved gas and
high silica content in the magma erupt?
A. extremely explosive
B. more gentle with flowing lava
C. unpredictable, with any kind of eruption
D. sometimes explosive, sometimes gentle
25. Which of the following could be the reason why the
development of geothermal energy plants in the country is
not that extensive?
A. distribution cost
C. potential emissions
B. location specifications
D. sustainability questions
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Answer:
20. D
21. B
22. A
23. C
24. A
25. A