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

Author Question: Mount St. Helens and the other Cascade volcanoes are ________. (Read 55 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557

Question 1

Oceanic lithosphere subducts (sinks into the asthenosphere) because ________.
◦ the upwelling magma at divergent boundaries pushes the lithospheric plate into the asthenosphere
◦ old oceanic lithosphere is more dense that the asthenosphere
◦ the pressure from two plates colliding forces one plate into the asthenosphere
◦ the convection of the mantle pulls the lithosphere into the asthenosphere

Question 2

Mount St. Helens and the other Cascade volcanoes are ________.
◦ a row of young, active, shield volcanoes built as western North America moved over a hot spot deep in the mantle
◦ young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere
◦ old, deeply eroded stratovolcanoes built before the Pacific Ocean existed
◦ old, deeply eroded, basaltic shield volcanoes built when western North America was over the present-day site of the Hawaiian hot spot


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by roselinechinyere27m on Feb 28, 2020

rosiehomeworddo

  • Sr. Member
  • ****
  • Posts: 306
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 64% of students answer this correctly




roselinechinyere27m

  • Member
  • Posts: 557
Reply 2 on: Feb 28, 2020
Gracias!


blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

The FDA recognizes 118 routes of administration.

For a complete list of videos, visit our video library