« previous next »

Author Question: What was the source(s) of the heat that made the early Earth much hotter than it is today? What ... (Read 125 times)

asan beg

  • Hero Member
  • *****
  • Posts: 570
on: Jul 16, 2018
What was the source(s) of the heat that made the early Earth much hotter than it is today?
 
  What will be an ideal response?

Question 2

What is the process of planetary differentiation? How did this process determine the composition of Earth?
 
  What will be an ideal response?


BUTTHOL369

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 16, 2018
Answer to Question 1

Collisional heating and radioactive decay (including short-lived types).

Answer to Question 2

Earth began as a magma ocean, and it chemically differentiated into the core of iron- seeking elements, and the mantle, composed of lighter elements. Differentiation is the result of density variations, causing denser metals to sink and form the core while less dense silicates made up the mantle.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

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?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Continental Drift—An Early Idea Continental Drift—An Early Idea
Examples of USP labels Source: Courtesy of Novartis Pharmaceuticals Corporation and Mallinckrodt Pha Examples of USP labels Source: Courtesy of Novartis Pharmaceuticals Corporation and Mallinckrodt Pha
The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust
Heat Stress and Wind Chill: Indices of Human Discomfort Heat Stress and Wind Chill: Indices of Human Discomfort
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Global Heat Transfer Global Heat Transfer
Video: Transferring genes into plants Animation

For a complete list of videos, visit our video library