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 73 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?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

An individual's performance can be limited by environmental conditions, such as temperature. Ac An individual's performance can be limited by environmental conditions, such as temperature. Ac
Polar Nature of Water Molecules Polar Nature of Water Molecules
Temperature cycles for 24 hours Temperature cycles for 24 hours
This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande
Selecting a Method for Measuring Body Temperature Selecting a Method for Measuring Body Temperature
The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library