This topic contains a solution. Click here to go to the answer

Author Question: Which option best describes the direction of the eruption of Mount St. Helens and the cause of this ... (Read 76 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
Which option best describes the direction of the eruption of Mount St. Helens and the cause of this action, according to Figure 15.24 in your textbook?
 
  A) Magma pressure built up and caused a vertical eruption of magma and ash.
  B) A rock slide released pressure on the magma, causing a horizontal eruption.
  C) An earthquake sheared off part of the mountain, causing a horizontal eruption.
  D) An earthquake opened a vent in the top of the mountain, releasing pressure on the magma and causing a vertical eruption.

Question 2

Put the following events in order from those that occur with the greatest driving force to those that occur with the least driving force and/or have the least effect on hillside stability.
 
  1. erosion 2. magma intrusion 3. volcanic eruption 4. liquefaction 5. earthquake
  A) 1, 2, 3, 5, 4
  B) 2, 1, 4, 5, 3
  C) 3, 4, 5, 2, 1
  D) 4, 5, 2, 3, 1



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dyrone

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D




CQXA

  • Member
  • Posts: 546
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it


samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

For a complete list of videos, visit our video library