Which of the following best describes the fumaroles that exist in Yellowstone National Park?
A) Hot springs so hot that they create steam and vent sulfuric acid
B) Lava deposits that are constantly heated from superheated gases in the ground below.
C) Smoke from lava pits below ground that vent to the surface through cracks.
D) Lakes that are heated by underground pyroclastic flows.
A
You might also like to view...
Meteograms are useful for: a. comparing surface weather variables at several different stations
b. comparing surface and upper-level weather conditions. c. comparing surface weather variables over a few days at one station. d. All of these choices.
Explain why erosion is a major threat to agriculture
What will be an ideal response?
In 2009, the G-20 nations agreed to ________
A) double the subsidies to fossil fuel companies B) postpone developing renewable energy resources until 2050 C) increase subsidies to fossil fuel industries by 10-12% D) set a goal to produce 60% of their energy from clean, renewable sources by 2030 E) gradually phase out their fossil fuel subsidies
Why did the number of women decline from 1951-2011 in the region?
A) female feticide B) infant mortality C) preference for male children D) all of the above E) none of the above