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

Author Question: The inner core has not always existed, but formed over time. Explain how conditions in the Earth ... (Read 68 times)

sdfghj

  • Hero Member
  • *****
  • Posts: 552
on: Jul 16, 2018
The inner core has not always existed, but formed over time. Explain how conditions in the Earth changed over time to create an inner core.
 
  What will be an ideal response?

Question 2

Scientists have subdivided the upper mantle into three sections based on environmental and compositional differences. What are these three subdivisions and how do they compare to each other?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

LP

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 16, 2018
Answer to Question 1

Props to you, cheers.

Answer to Question 2

Answer: The uppermost mantle is the lithospheric mantle, which is slightly lower in density and solid. Next down is the asthenosphere, which is similar in peridotite composition to the lithospheric mantle, but is hotter and less rigid, thus allowing lithospheric plates to move over it. The lowest subdivision is the transition zone. This is also where mineral phase changes occur to transform olivine to spinel.


sdfghj

  • Hero Member
  • *****
  • Posts: 552
Reply #2 on: Jul 16, 2018
Thank you :)


LP

  • Sr. Member
  • ****
  • Posts: 302
Reply #3 on: Jul 16, 2018
Happy to help you


« previous next »
 

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

The black-capped chickadee is a permanent resident in biomes with harsh winter conditions. The black-capped chickadee is a permanent resident in biomes with harsh winter conditions.
The Tilt of Earth’s Axis The Tilt of Earth’s Axis
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
Press into points along the neck with your thumb, one side at a time. Apply circular friction to ... Press into points along the neck with your thumb, one side at a time. Apply circular friction to ...
Structure of the nucleosome core particle as revealed by X-ray diffraction Structure of the nucleosome core particle as revealed by X-ray diffraction
Micrograph of ice core Micrograph of ice core
Video: Blood Flow through the Human Heart

For a complete list of videos, visit our video library