Answer:
E) All of these choices are correct.
Yellowstone is an active volcanic system located in the western United States and is capable of causing a future disaster due to several factors, including:
A) The area is part of a caldera: Yellowstone sits on top of a volcanic caldera, which is a large depression in the Earth's crust formed by a collapsed magma chamber. This caldera is a clear indication that the area has had significant volcanic activity in the past and could potentially experience future eruptions.
B) Scientists think that magma is still present at depth: While there is currently no active eruption at Yellowstone, scientists believe that there is still a significant amount of magma beneath the surface. This magma could potentially cause future eruptions or other volcanic activity.
C) Past eruptions from Yellowstone carried ash over a huge area of western North America: The most recent eruption at Yellowstone occurred approximately 640,000 years ago, and it was a massive event that covered a large area with ash and other volcanic materials. Future eruptions could potentially have similar effects, which could have serious consequences for people and wildlife in the surrounding area.
D) Land near Yellowstone is uplifting in some places and subsiding in others: The land around Yellowstone is constantly changing, with some areas experiencing uplift and others subsiding. This indicates ongoing geologic activity and could potentially lead to earthquakes, landslides, and other hazards.
Taken together, these factors highlight the potential for future disasters related to Yellowstone and the need for ongoing monitoring and research to better understand the risks and potential impacts.
Step-by-step explanation: