In which Canadian province is Mount St. Helens located?
A) British Columbia
B) Alberta
C) Yukon
D) Saskatchewan
Answer: A
Mount St. Helens is known for its __________.
A) Active volcano
B) Glacial lakes
C) Geothermal springs
D) Coral reefs
Answer: A
What type of volcano is Mount St. Helens?
A) Shield volcano
B) Stratovolcano
C) Cinder cone
D) Caldera
Answer: B
In which year did the most significant eruption of Mount St. Helens occur?
A) 1979
B) 1980
C) 1991
D) 2000
Answer: B
The eruption of Mount St. Helens in 1980 caused the largest __________ in recorded history.
A) Avalanche
B) Earthquake
C) Tsunami
D) Pyroclastic flow
Answer: A
What is the name of the lava dome that formed after the 1980 eruption?
A) Mount Adams
B) Mount Rainier
C) Spirit Lake
D) Lava Butte
Answer: D
Mount St. Helens is located in which mountain range?
A) Rocky Mountains
B) Coast Mountains
C) Cascade Range
D) Appalachian Mountains
Answer: C
What is the height of Mount St. Helens?
A) 2,300 meters
B) 3,100 meters
C) 2,549 meters
D) 1,987 meters
Answer: C
What type of natural disaster is associated with the eruption of Mount St. Helens?
A) Hurricane
B) Tornado
C) Volcanic eruption
D) Earthquake
Answer: C
Mount St. Helens is part of the __________ National Volcanic Monument.
A) Mount Rainier
B) Mount Hood
C) Mount St. Helens
D) Mount Baker
Answer: C
What caused the eruption of Mount St. Helens in 1980?
A) A massive earthquake
B) A volcanic tsunami
C) A meteor impact
D) A collapse of the north flank
Answer: D
The eruption of Mount St. Helens released a large amount of __________ into the atmosphere.
A) Carbon dioxide
B) Methane
C) Sulfur dioxide
D) Oxygen
Answer: C
What famous feature of Mount St. Helens collapsed during the 1980 eruption?
A) The lava dome
B) The summit crater
C) The north flank
D) The glacial ice cap
Answer: C
Mount St. Helens is located in the state of __________.
A) California
B) Oregon
C) Washington
D) Idaho
Answer: C
What type of rock is most commonly found at Mount St. Helens?
A) Basalt
B) Granite
C) Pumice
D) Gneiss
Answer: C
Mount St. Helens is famous for its dramatic change in __________ due to the 1980 eruption.
A) Elevation
B) Color
C) Shape
D) Temperature
Answer: C
The eruption of Mount St. Helens in 1980 created a __________ on the north side of the mountain.
A) Crater lake
B) Caldera
C) Lava tube
D) Glacial valley
Answer: B
Which natural resource was significantly impacted by the eruption of Mount St. Helens?
A) Timber
B) Gold
C) Oil
D) Freshwater
Answer: A
Mount St. Helens is located within the __________ National Forest.
A) Olympic
B) Willamette
C) Gifford Pinchot
D) Wenatchee
Answer: C
The eruption of Mount St. Helens caused significant destruction to the nearby __________.
A) City of Seattle
B) City of Portland
C) Spirit Lake
D) Mount Rainier
Answer: C
Which of the following is NOT a primary hazard associated with the eruption of Mount St. Helens?
A) Pyroclastic flows
B) Lahars (volcanic mudflows)
C) Tsunamis
D) Ashfall
Answer: C
The eruption of Mount St. Helens in 1980 caused a temporary change in the color of the sky due to __________.
A) Light pollution
B) Air pollution
C) A solar eclipse
D) Ash particles in the atmosphere
Answer: D
The eruption of Mount St. Helens resulted in the loss of an estimated __________ square kilometers of forest.
A) 200
B) 600
C) 1000
D) 1500
Answer: B
What is the name of the river that originates from the crater of Mount St. Helens?
A) Columbia River
B) Snake River
C) Toutle River
D) Willamette River
Answer: C
Mount St. Helens is part of the __________ Cascade volcanoes.
A) Canadian
B) Mexican
C) Alaskan
D) Central American
Answer: A
The eruption of Mount St. Helens caused the formation of a __________ on the north face of the mountain.
A) New crater
B) New lava flow
C) New glacier
D) New forest
Answer: A
What is the approximate latitude of Mount St. Helens?
A) 40°N
B) 45°N
C) 50°N
D) 55°N
Answer: B
The eruption of Mount St. Helens was preceded by a series of __________ earthquakes.
A) Tectonic
B) Volcanic
C) Ice-induced
D) Glacial
Answer: B
What is the significance of the date May 18, 1980, in relation to Mount St. Helens?
A) The eruption occurred on this date
B) The volcano was discovered on this date
C) The first ascent of the volcano was on this date
D) The eruption warning was issued on this date
Answer: A
Which of the following statements about Mount St. Helens is NOT true?
A) It is the highest volcano in Canada
B) It is located in the Cascade Range
C) It has experienced significant eruptions
D) It is known for its volcanic activity
Answer: A
The eruption of Mount St. Helens resulted in the destruction of the __________.
A) Grand Coulee Dam
B) Hoover Dam
C) The Ape Caves
D) Bonneville Dam
Answer: C
Which of the following animals is known to have survived the eruption of Mount St. Helens?
A) Grizzly bear
B) Bald eagle
C) Salmon
D) Sasquatch
Answer: C
Mount St. Helens is an important research site for studying __________.
A) Earthquakes
B) Glaciers
C) Volcanic activity
D) Hurricanes
Answer: C
The eruption of Mount St. Helens had a significant impact on the __________ industry.
A) Timber
B) Fishing
C) Mining
D) Tourism
Answer: A
Which nearby lake was filled with volcanic debris following the eruption of Mount St. Helens?
A) Crater Lake
B) Spirit Lake
C) Lake Tahoe
D) Lake Louise
Answer: B
The eruption of Mount St. Helens is considered one of the most __________ volcanic events in the contiguous United States.
A) Recent
B) Powerful
C) Historic
D) Deadly
Answer: B
Mount St. Helens is located near the border of the United States and __________.
A) Canada
B) Mexico
C) Russia
D) France
Answer: A
What is the name of the volcanic crater that formed after the eruption of Mount St. Helens?
A) Crater Lake
B) Spirit Lake
C) Ape Cave
D) Mount Adams
Answer: A
Which U.S. state is directly south of Mount St. Helens?
A) Washington
B) Oregon
C) California
D) Idaho
Answer: B
Mount St. Helens is part of the __________ National Monument and Preserve.
A) Mount Rainier
B) Crater Lake
C) Mount St. Helens
D) Lassen Volcanic
Answer: C
The 1980 eruption of Mount St. Helens was a result of __________ activity.
A) Human
B) Tectonic
C) Meteorological
D) Oceanic
Answer: B
What is the name of the river that flows through the valley impacted by the eruption?
A) Columbia River
B) Snake River
C) Toutle River
D) Willamette River
Answer: C
The eruption of Mount St. Helens was preceded by a period of increased __________ activity.
A) Earthquake
B) Tsunami
C) Hurricane
D) Avalanche
Answer: A
The eruption of Mount St. Helens in 1980 resulted in the destruction of __________.
A) Portland
B) Seattle
C) Olympia
D) Tacoma
Answer: B
What was the approximate magnitude of the earthquake that triggered the eruption?
A) Magnitude 5
B) Magnitude 6
C) Magnitude 7
D) Magnitude 8
Answer: B
The eruption of Mount St. Helens caused the destruction of a large area known as the __________.
A) Red Zone
B) Danger Zone
C) Blast Zone
D) Evacuation Zone
Answer: C
Which of the following is NOT a result of the eruption of Mount St. Helens?
A) Creation of a lava dome
B) Formation of a crater
C) Collapse of the summit
D) Creation of a new mountain range
Answer: D
The eruption of Mount St. Helens had a significant impact on the __________ industry.
A) Fishing
B) Logging
C) Mining
D) Tourism
Answer: B
Which of the following is NOT a hazard associated with the eruption of Mount St. Helens?
A) Pyroclastic flows
B) Tsunamis
C) Lahars
D) Ashfall
Answer: B
What is the name of the volcano that erupted explosively in 1980, causing significant damage to the surrounding area?
A) Mount Rainier
B) Mount Hood
C) Mount St. Helens
D) Mount Baker
Answer: C
