« previous next »

Author Question: Which of the following carbon reservoirs has the longest residence time: plants, the oceans, or ... (Read 97 times)

mwit1967

  • Hero Member
  • *****
  • Posts: 501
on: Jul 14, 2018
Which of the following carbon reservoirs has the longest residence time: plants, the oceans, or sedimentary limestone?
 
  What will be an ideal response?

Question 2

What is hypothesized to drive the Wilson cycle of plate fragmentation and reassembly?
 
  What will be an ideal response?


randomguy133

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 14, 2018
Answer to Question 1

Sedimentary limestone, because a carbon atom may spend millions of years in the sedimentary/metamorphic rock reservoir, while it spends a short time (years to millennia) in the other reservoirs.

Answer to Question 2

Continents assemble into a supercontinent, being drawn toward cool regions of the asthenosphere. The supercontinent acts as an insulator, so the mantle heats up below the continent. The continent rises in response, and tension at the surface breaks its apart forming smaller continents. These smaller continents eventually disperse and then reassemble, being drawn again to cool asthenosphere.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Overview of material uptake and long-distance transport processes in plants Overview of material uptake and long-distance transport processes in plants
Plants Plants
Men and women work the same number of hours a week, but men spend more time on paid work, and women ... Men and women work the same number of hours a week, but men spend more time on paid work, and women ...
Thermohaline currents flow to all oceans Thermohaline currents flow to all oceans
Disitive Time For Water Disitive Time For Water
Ho to calculate the ATP of a 12-Carbon fatty acid, beta oxidation Ho to calculate the ATP of a 12-Carbon fatty acid, beta oxidation
Video: Michaelis–Menten equation & Kinetic parameters

For a complete list of videos, visit our video library