This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What generates the heat necessary for convection in the Earth? A) Volcanic eruptions B) Friction ... (Read 66 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jul 16, 2018
What generates the heat necessary for convection in the Earth?
 
  A) Volcanic eruptions
  B) Friction between moving slabs
  C) Chemical reactions between geologic materials and hydrothermal fluids
  D) Decay of radioactive materials

Question 2

Which is denser: a 100-million-year-old oceanic lithosphere near a convergent boundary, a 15-million-year-old oceanic lithosphere near a rift, or the upper part of the asthenosphere?
 
  A) A 15-million-year-old oceanic lithosphere
  B) 100-million-year-old oceanic lithosphere
  C) Upper asthenosphere
  D) They all have the same density.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

owenfalvey

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


Shelles

  • Hero Member
  • *****
  • Posts: 582
Reply #2 on: Jul 16, 2018
TY


owenfalvey

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jul 16, 2018
Happy to Help


« previous next »
 

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

The form and orientation of desert plants reduces heat gain from the environment and facilitates coo The form and orientation of desert plants reduces heat gain from the environment and facilitates coo
Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Apply the heat source, and ask for immediate feedback on the heat intensity felt by the recipient. ... Apply the heat source, and ask for immediate feedback on the heat intensity felt by the recipient. ...
Earth’s Biomes "الأرض الحيوية" Earth’s Biomes "الأرض الحيوية"
Earth’s Spheres Earth’s Spheres
Orbital Motion of Earth and Other Planets Orbital Motion of Earth and Other Planets
Video: Mitosis step-by-step

For a complete list of videos, visit our video library