« previous next »

Author Question: Which two factors are critical to the existence of the carbon dioxide (CO2 ) cycle on Earth? A) ... (Read 65 times)

jman1234

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
Which two factors are critical to the existence of the carbon dioxide (CO2 ) cycle on Earth?
 
  A) life and atmospheric oxygen
  B) life and active volcanism
  C) plate tectonics and liquid water oceans
  D) active volcanism and active tectonics

Question 2

A gamma-ray burster emits a quantity of energy similar to that emitted in a ________.
 
  Fill in the blank(s) with correct word


Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

supernova or supernova explosion.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Actions of regulatory transcription factors and small effector molecules Actions of regulatory transcription factors and small effector molecules
A parasite life cycle. A parasite life cycle.
Allium cells in different phases of the cell cycle Allium cells in different phases of the cell cycle
Life-cycle of the Sun; sizes are not drawn to scale. Life-cycle of the Sun; sizes are not drawn to scale.
A free-running circadian sleep–wake cycle 25.3 hours in duration. Despite living in an unchanging ... A free-running circadian sleep–wake cycle 25.3 hours in duration. Despite living in an unchanging ...
A generalized life cycle of a basidiomycete. A generalized life cycle of a basidiomycete.
Video: Condensation and Hydrolysis Animation

For a complete list of videos, visit our video library