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

Author Question: True or False: Earth exhibits a gradual inward transition from low-density to high-density rock. ... (Read 130 times)

nelaaney

  • Hero Member
  • *****
  • Posts: 560
on: Jul 16, 2018
True or False: Earth exhibits a gradual inward transition from low-density to high-density rock.
 
  Indicate whether this statement is true or false.

Question 2

How did the hydrosphere and atmosphere form?
 
  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

mk6555

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: FALSE

Answer to Question 2

Answer: Two contrasting hypotheses explain the origin of Earth's atmosphere and hydrosphere. One hypothesis suggests delivery of water-rich materials from meteorites and comets that accreted to the initially dry Earth very late in the formation of the planet. The other hypothesis suggests that Earth accreted wet, from planetesimals or embryos already containing water-bearing minerals. Water vapor is the most abundant gas erupted from volcanoes. This observation is consistent with the hypothesis that the hydrosphere derived from melting water-bearing mantle minerals and erupting water vapor through volcanoes. Atmosphere composition changed through Earth history as a result of weathering reactions and the presence of photosynthetic organisms, which consume carbon dioxide and create oxygen.


nelaaney

  • Member
  • Posts: 560
Reply 2 on: Jul 16, 2018
Wow, this really help

meganmoser117

  • Member
  • Posts: 303
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Earth with Rings Earth with Rings
Deconvolution fluorescence microscopy yields high-resolution optical sections th Deconvolution fluorescence microscopy yields high-resolution optical sections th
(Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ... (Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ...
Which of the following would have a density of 1.89 g/L at 7.0°C and 0.987 atm? Which of the following would have a density of 1.89 g/L at 7.0°C and 0.987 atm?
Earth 200 Million Years Ago Earth 200 Million Years Ago
Floating rock illusion Floating rock illusion
Video: Coronary Heart Disease

For a complete list of videos, visit our video library