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

Author Question: For water to have been stable on Mars in the past, A) temperature must have been higher and the ... (Read 107 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
For water to have been stable on Mars in the past,
 
  A) temperature must have been higher and the atmospheric pressure lower
  B) temperature must have been lower and the atmospheric pressure higher
  C) both the temperature and the atmospheric pressure must have been higher
  D) both the temperature and the atmospheric pressure must have been lower

Question 2

Most of the deuterium that formed right after the Big Bang
 
  A) is still around today.
  B) broke down into electrons and neutrons.
  C) turned into dark matter.
  D) quickly burned into helium nuclei.
  E) was found in the globular clusters.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

debra928

  • Sr. Member
  • ****
  • Posts: 342
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

D


codyclark

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 27, 2018
TY


debra928

  • Sr. Member
  • ****
  • Posts: 342
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

The tenuous atmosphere of Mars, visible on the horizon in this low-orbit photo The tenuous atmosphere of Mars, visible on the horizon in this low-orbit photo
Effect of extracellular osmolarity on water movement across a plasma membrane Effect of extracellular osmolarity on water movement across a plasma membrane
Ocean water flows vertically and horizontally, influencing climate Ocean water flows vertically and horizontally, influencing climate
Variations in Ocean Water Density with Depth Variations in Ocean Water Density with Depth
Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea. Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea.
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

For a complete list of videos, visit our video library