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

Author Question: Why is Titan considered a good candidate for life? A) It has lakes and rivers of liquid methane ... (Read 101 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
Why is Titan considered a good candidate for life?
 
  A) It has lakes and rivers of liquid methane and ethane that could support life as water does on Earth.
  B) Cassini measurements suggest it has an ocean of liquid water beneath its surface.
  C) There is evidence for several volcanic cones that likely erupt liquid water that is below Titan's frozen crust.
  D) All of the above

Question 2

What evidence supports the idea that a collision between two spiral galaxies might lead to the creation of a single elliptical galaxy?
 
  A) observations of some elliptical galaxies surrounded by shells of stars that probably formed from stars stripped out of smaller galaxies
  B) the fact that elliptical galaxies dominate the galaxy populations at the cores of dense clusters of galaxies
  C) observations of some elliptical galaxies with stars and gas clouds in their cores that orbit differently from the other stars in the galaxy
  D) observations of giant elliptical galaxies at the center of dense clusters that may have grown by consuming other galaxies
  E) all of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

EAN94

  • Sr. Member
  • ****
  • Posts: 307
Answer to Question 1

D

Answer to Question 2

E



oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
Both answers were spot on, thank you once again



EAN94

  • Sr. Member
  • ****
  • Posts: 307

 

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

For a complete list of videos, visit our video library