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

Author Question: Mars and Mercury are similar in size, and Mercury is even denser. Why then is it Mars that has more ... (Read 101 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
Mars and Mercury are similar in size, and Mercury is even denser. Why then is it Mars that has more atmosphere?
 
  What will be an ideal response?

Question 2

If o is less than one, then
 
  A) only dark energy exists in the universe.
  B) there is more matter than energy in the universe.
  C) the universe will expand forever.
  D) the universe is closed, and must recycle.
  E) no matter could have existed.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rleezy04

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

Its location is too close to the Sun; Mercury's gases boil away in the solar wind. Colder Mars has enough gravity to hang on to more, even though its water is no longer liquid today.

Answer to Question 2

C




ssal

  • Member
  • Posts: 572
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it


jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Excellent

 

Did you know?

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

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

For a complete list of videos, visit our video library