Last Updated :
15 Mar, 2019
Question 19 and 20 are based on the following reading passage.
A volcano can cause widespread damage, even when it\’s not erupting. An erupting volcano can cause ballistic showers of rocks, fast-moving currents of ash or lava called pyroclastic flows and acid rain. But even volcanoes that are not currently erupting can cause hazards — grounds around the volcano may be unstable and can cause landslides, for example. While these effects are most strongly felt near the site of an eruption, mudslides or floods can reach over 50 miles (80 kilometers) away, and ashfall can even reach areas 1,000 miles (1,600 km) away, according to the report. Although eruptions cannot be stopped, measures to limit exposure and enhance tolerance can make society less vulnerable to their effects. This includes evacuating hazard zones during an eruption, making infrastructure more resistant to its effects, swiftly cleaning up after the event and diverting lava or removing combustible material from its path. In the case of ash fall, people can wear particle masks, avoid driving, seal off buildings, shelter livestock, and shelter in place.
According to the passage, what about volcanoes is true?
(A) Volcanos can be stopped if various preventive measures are taken.
(B) The eruption of volcanos can only be felt only till 1000 km.
(C) There is no effect of a volcanic eruption.
(D) A volcano can cause destruction even if it\’s not erupting.
(E) A volcano can cause limited damage only when it\’s erupting.
Answer: (D)
Explanation: Volcano can cause damage even if they are not erupting and they can not be stopped. Only preventive measures can be taken to limit exposure which can make society less vulnerable to the effect.
Option (B) is wrong because it is clearly mentioned that it can even reach areas 1600 km away.
So, option (D) is correct.
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