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

Author Question: Which part of the subduction zone is indicated in this image? A) Deep-ocean trench B) Forearc ... (Read 57 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Jul 15, 2018
Which part of the subduction zone is indicated in this image?
 
  A) Deep-ocean trench
  B) Forearc basin
  C) Volcanic arc
  D) Back-arc basin

Question 2

Is there data to suggest there was more accretion in the distant past (4 billion years ago) or the more recent past (50 million years ago)? Explain.
 
  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

mcabuhat

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: There was more accretion in the past because there was more radioactive decay in the past. When the Earth was younger, there were more unstable radioactive isotopes that were going through the decay process. The radioactive decay would provide the heat necessary for convection. So, with more isotopes and more decay, more heat would be produced. More heat produced means more convection, which means faster plate motion.


Chelseaamend

  • Member
  • Posts: 545
Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

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.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
Part B - Nondisjunction MasteringBiology Chapter 15 Part B - Nondisjunction MasteringBiology Chapter 15
How to calculate compound interest (Part 2) How to calculate compound interest (Part 2)
Contrasting Colors (Part 1) Contrasting Colors (Part 1)
Finding the angle from a ratio (Part 1) Finding the angle from a ratio (Part 1)
Inadequate Airway, Breathing and Circulation in the Trauma Patient (Part 3) Inadequate Airway, Breathing and Circulation in the Trauma Patient (Part 3)
Video: Mitochondrial Structure & ETC Protein Complexes (Protein Complexes and Electron Transport)

For a complete list of videos, visit our video library