Question

part a: how did the mount pinatubo eruption help modern scientists understand the long - term effects of the tambora eruption?
a. pinatubos larger and more powerful cloud directly mirrored tamboras effect on global weather.
b. scientists monitored pinatubos cloud and saw how the layer of haze blocked the sun, causing temperatures to drop worldwide.
c. pinatubos eruption killed millions, confirming that tambora was also responsible for widespread death.
d. by studying pinatubo, scientists determined that the effects of a volcanic cloud only last a few months
part b: which sentence describes the primary mechanism by which the volcanic cloud affected the climate?
a. it was not as powerful as tambora, but it was monstrous.
b. it took three years for the foamy haze to clear.
c. like a layer of sunscreen slathered across the sky, the cloud blocked out some of the suns heat and light.
d. tamboras cloud would have been even bigger, its effects more devastating.

Explanation:

For Part A:

• Option A: Incorrect. Pinatubo was not larger than Tambora.
• Option B: Correct. Scientists monitored Pinatubo's cloud and saw the haze - sun blocking effect which is similar to what would have happened with Tambora.
• Option C: Incorrect. Pinatubo did not kill millions (the death toll was in the thousands), and this is not about the long - term climatic effect.
• Option D: Incorrect. The effects of a volcanic cloud can last longer than a few months (as seen with Tambora's “year without a summer”).

For Part B:

• Option A: Talks about power comparison, not the mechanism of climate effect.
• Option B: Talks about the duration of the haze, not the mechanism.
• Option C: Describes the mechanism (blocking sun's heat and light) by which the volcanic cloud affected the climate.
• Option D: Talks about a comparison of cloud size and effects, not the mechanism.

Answer:

Part A: B. Scientists monitored Pinatubo's cloud and saw how the layer of haze blocked the sun, causing temperatures to drop worldwide.
Part B: C. "Like a layer of sunscreen slathered across the sky, the cloud blocked out some of the sun's heat and light."