1) What is a fumarole?
a) An opening through which issues hydrogen sulfide, steam, or other gases.
b) An eruption from the side of a volcano.
c) A smoke shop
d) A volcanic cone built entirely of loose fragmented materials.

2) We can unequivocally tell when and how a volcano will erupt.
a) True
b) False

3) Yellowstone has the most hydrothermal vents than any other park in the U.S. National Park System.
a) True
b) False

4) Pyroclastic flows are hazardous due to their ____________.
a) Weight
b) Speed
c) Density
d) Composition

5) Risks = Hazards + _______________.
a) Benefit
b) Strength
c) Vulnerability
d) Wealth

6) Monitoring volcanoes in itself is quite safe?
a) True
b) False

7) Olympus Mons is the largest volcano in the solar system?
a) True
b) False

8) A phreatic eruption is a steam eruption in which mud, water and heated rocks interact to produce a violent flash expulsion of steam without the involvement of magma.
a) True
b) False

9) Basalt on Mars is considered more "evolved" than Earth because ____________________.
a) It has more copper
b) It has more chlorine
c) It has more magnesium
d) It has more silicon

10) The differences between black smokers and pillow basalt include that black smokers have (check all that apply) _______.
a) Taller vent structures
b) Greater amounts of mineral precipitation
c) Higher temperatures
d) Rounder shapes

11) Mt. St. Helen's is still active. The question is when will it erupt again, not if?
a) True
b) False

12) Europa forms cryovolcanoes because there is enough internal heat to melt ice. The heat sources include (choose all that apply) ____________.
a) gravity
b) solar heating
c) remnants of planet formation
d) tides

13) Volcanic gases differ from one volcano to another. However, the most common volcanic gas that acts to heat the atmosphere is _______________.
a) SO₂
b) CO₂
c) H₂S
d) H₂O

14) The most common volcanic gas that acts to cool the atmosphere is __________________.
a) SO₂
b) CO₂
c) H₂S
d) H₂O

15) Volcanic mitigation is both short and long term. For the mitigation steps listed below, place an S for short term and an L for long term next to the step. [Example: Firehouse Siren ____S____ ].
a) evacuation ______ d) land use _________
b) forecasting _______ e) warning _________
c) monitoring ______