XII-3. Reading Evaluation

Questions 1–5: Passage 1 – Volcanic Gas Emissions

[1] Volcanoes release vast quantities of gases into the atmosphere during eruptions, primarily water vapor, carbon dioxide, and sulfur dioxide. [2] When sulfur dioxide reacts with atmospheric water vapor, it forms sulfate aerosols that reflect incoming solar radiation back into space. [3] Following the 1991 eruption of Mount Pinatubo in the Philippines, global average temperatures dropped by approximately 0.5 degrees Celsius for over a year. [4] Conversely, massive volcanic outgassing events over millions of years have historically increased global greenhouse effects due to sustained carbon dioxide accumulation.

What can be inferred from paragraph [2] and [3] about sulfate aerosols?

A) They accelerate the rate of global warming immediately.

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B) They have a temporary cooling effect on Earth's climate.

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C) They prevent carbon dioxide from accumulating in the oceans.

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D) They are produced in larger quantities by shield volcanoes than composite ones.

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2. Which of the following is implied about the Mount Pinatubo eruption in 1991?

A) It released enough sulfur dioxide to alter global climate conditions temporarily.

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B) It destroyed all atmospheric water vapor surrounding the Philippines.

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C) It failed to emit any carbon dioxide into the upper atmosphere.

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D) It was the largest volcanic eruption recorded in human history.

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3. Based on Sentence [4], what can be inferred about carbon dioxide emissions from long-term volcanic activity?

A) They cool the planet much faster than sulfate aerosols do.

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B) They contribute to long-term atmospheric warming rather than immediate cooling.

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C) They prevent volcanic eruptions from becoming explosive.

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D) They neutralize the toxic effects of sulfur dioxide in the atmosphere.

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4. The author implies that the impact of a volcanic eruption on climate depends largely on:

A) The height of the volcano above sea level

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B) The specific types and quantities of gases released into the atmosphere

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C) The distance between the volcano and the equator

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D) The speed at which lava flows down the slopes

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5. It can be inferred from the passage that a single volcanic eruption:

A) Will permanently alter Earth's climate balance forever

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B) Can produce short-term cooling even if long-term emissions promote warming

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C) Only affects the weather of the immediate surrounding region

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D) Eliminates greenhouse gases from the upper atmosphere

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Questions 6–10: Passage 2 – Earthquake Focus and Epicenter

[1] The point within the Earth where an earthquake originates is called the focus, or hypocenter. [2] The epicenter is the point on the Earth’s surface directly above the focus. [3] Shallow-focus earthquakes occur at depths less than 70 kilometers, whereas deep-focus earthquakes originate at depths between 300 and 700 kilometers beneath the surface. [4] Because seismic energy dissipates as it travels through rock layers, shallow-focus earthquakes generally cause far more severe surface shaking and structural destruction than deep-focus events of equivalent magnitude.

What can be inferred from Sentence [4] about deep-focus earthquakes?

A) They never generate seismic waves that reach the Earth's surface.

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B) Their energy loses intensity as it travels through hundreds of kilometers of rock.

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C) They are always accompanied by volcanic eruptions at the epicenter.

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D) They occur exclusively along major oceanic trenches.

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7. Which of the following is implied about two earthquakes with the same magnitude?

A) The one with a shallower focus will likely cause more damage at its epicenter.

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B) The one with a deep focus will create higher tsunami waves.

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C) Both will produce identical destruction on the surface regardless of depth.

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D) The deep-focus earthquake will be felt over a smaller geographic area.

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8. Based on Sentence [1] and [2], what is the relationship between the focus and the epicenter?

A) The focus is on the surface, while the epicenter is underground.

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B) The epicenter is located directly above the underground point of origin.

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C) The focus occurs only after the epicenter experiences shaking.

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D) The focus and epicenter are always miles apart horizontally.

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9. It can be inferred from the passage that energy dissipation:

A) Increases the destructive potential of an earthquake as it moves deeper

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B) Reduces seismic wave force as distance from the focus increases

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C) Prevents shallow earthquakes from causing surface damage

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D) Only occurs during volcanic earthquakes

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10. What can be inferred about an earthquake occurring at a depth of 50 kilometers?

A) It is classified as a deep-focus earthquake.

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B) It will cause less surface damage than a 500-kilometer deep earthquake.

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C) It is categorized as a shallow-focus earthquake.

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D) It cannot be detected by surface seismographs.

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Questions 11–15: Passage 3 – The Ring of Fire

[1] The Pacific “Ring of Fire” is a horse-shoe shaped basin where roughly 90% of the world’s earthquakes and over 75% of active volcanoes occur. [2] This intense tectonic activity is driven by subduction zones, where denser oceanic plates slide beneath lighter continental plates into the mantle. [3] As the sinking oceanic slab descends, extreme heat and pressure release water trapped in the rock, melting the overlying mantle material and forming magma. [4] Regions situated along subduction boundaries require strict seismic building codes and advanced tsunami warning systems.

What can be inferred from paragraph [1] about regions outside the Ring of Fire?

A) They experience no volcanic or seismic activity whatsoever.

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B) They account for a minority of global earthquakes and active volcanoes.

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C) They are located entirely on oceanic tectonic plates.

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D) They do not possess continental crust.

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12. Based on Sentence [2], why does an oceanic plate slide beneath a continental plate?

A) The continental plate moves faster than the oceanic plate.

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B) The oceanic plate is denser than the continental plate.

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C) The continental plate contains higher amounts of trapped water.

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D) The oceanic plate has a higher temperature than the mantle.

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13. It can be inferred from Sentence [3] that the presence of water in descending plate rock:

A) Prevents magma from forming in the subduction zone

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B) Lowers the melting temperature of mantle rock to generate magma

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C) Cools the subduction zone and stops volcanic eruptions

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D) Extinguishes underground volcanic fires

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14. What does Sentence [4] imply about countries situated along the Ring of Fire?

A) They are less prepared for natural disasters than other nations.

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B) They face elevated risks from seismic events and volcanic hazards.

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C) They do not require tsunami early-warning systems due to dense populations.

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D) They have completely eliminated structural damage from earthquakes.

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15. What is suggested about subduction zones in general?

A) They are stable geological areas with minimal tectonic movement.

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B) They are major sites of magma generation and earthquake activity.

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C) They occur only in freshwater lake environments.

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D) They prevent oceanic crust from ever recycling into the mantle.

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Questions 16–20: Passage 4 – Earthquake Prediction Techniques

[1] While meteorologists can predict weather patterns days in advance, geologists cannot currently predict the exact time and location of an impending earthquake. [2] Instead, scientists focus on long-term forecasting by analyzing historic fault movement intervals and calculating probability rates over decades. [3] Certain animal behaviors and radon gas spikes in groundwater have been observed prior to major quakes, but these phenomena are notoriously inconsistent. [4] Consequently, seismic engineering—building earthquake-resistant infrastructure—remains humanity’s most reliable defense against seismic hazards.

What can be inferred from Sentence [1] about earthquake prediction compared to weather forecasting?

A) Weather forecasting is less accurate than seismic forecasting.

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B) Short-term earthquake prediction is significantly more challenging than weather prediction.

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C) Geologists use the same satellite tools as meteorologists.

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D) Earthquakes follow more predictable daily patterns than weather fronts.

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17. Based on Sentence [3], why do geologists not rely solely on animal behavior to warn the public?

A) Animals only react after an earthquake has already finished.

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B) Animals are immune to feeling seismic vibrations.

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C) Biological and chemical anomaly signals do not happen consistently before every quake.

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D) Radon gas completely prevents animals from sensing danger.

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18. What does Sentence [2] imply about “long-term forecasting”?

A) It tells residents the exact minute a quake will hit.

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B) It estimates the likelihood of an earthquake occurring in a region over a broad timeframe.

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C) It prevents fault lines from moving for several decades.

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D) It replaces the need for seismic engineering entirely.

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19. It can be inferred from Sentence [4] that retrofitting buildings for seismic safety:

A) Is unnecessary if long-term forecasts are published

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B) Is less effective than relying on animal behavior signals

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C) Completely stops earthquakes from occurring underground

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D) Provides protection even when the exact time of an earthquake is unknown

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20. Which statement best summarizes the author’s implied view on seismic safety?

A) Scientists will soon master exact short-term earthquake predictions.

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B) Structural preparation is currently more practical for saving lives than short-term prediction.

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C) Long-term probability statistics are useless for urban planners.

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D) Radon gas monitoring should be the main defense against quakes.

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XII-3. Reading Evaluation

Quiz Summary

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Results

Results

Categories

1. Question

Questions 1–5: Passage 1 – Volcanic Gas Emissions

2. Question

3. Question

4. Question

5. Question

6. Question

Questions 6–10: Passage 2 – Earthquake Focus and Epicenter

7. Question

8. Question

9. Question

10. Question

11. Question

Questions 11–15: Passage 3 – The Ring of Fire

12. Question

13. Question

14. Question

15. Question

16. Question

Questions 16–20: Passage 4 – Earthquake Prediction Techniques

17. Question

18. Question

19. Question

20. Question