This topic contains a solution. Click here to go to the answer

Author Question: For water to have been stable on Mars in the past, A) temperature must have been higher and the ... (Read 101 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
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
Answer to Question 1

C

Answer to Question 2

D





 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The FDA recognizes 118 routes of administration.

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?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

For a complete list of videos, visit our video library