Text 1: Volcanologist Lim argues that Yellowstone's supervolcano is a serious long-term hazard. Past eruptions ejected enough ash to bury much of North America under inches of debris, and geological evidence suggests the magma chamber beneath the park is currently active.
Text 2: Volcanologist Reed agrees that Yellowstone has produced massive eruptions in the past but emphasizes timing. The park's three super-eruptions occurred about 2.1 million, 1.3 million, and 640,000 years ago. The probability of an eruption in any given century, Reed argues, is extraordinarily low — far lower than risks from earthquakes or other volcanic systems worldwide.
Both authors would most likely agree that
- Acheck_circle
Yellowstone has produced very large eruptions in the geological past.
- B
an eruption is likely in this decade.
- C
supervolcanoes do not exist.
- D
Yellowstone presents no significant geological activity.
Explanation
Both accept the historical eruptions; they differ on the imminence of risk. A is shared. B reflects neither; C and D contradict both.