« previous next »

Author Question: How are surfaces of Mercury and the Moon similar? Different? Why? What will be an ideal ... (Read 110 times)

bclement10

  • Hero Member
  • *****
  • Posts: 560
on: Jul 27, 2018
How are surfaces of Mercury and the Moon similar? Different? Why?
 
  What will be an ideal response?

Question 2

What evidence tells us that quasars are the centers of distant galaxies?
 
  A) Rapid variations in quasar luminosity tell us that they must be quite small in size.
  B) Quasars are extremely luminous.
  C) All quasars have large redshifts.
  D) Images and spectra show quasars to be embedded at the centers of distant galaxies.


shewald78

  • Sr. Member
  • ****
  • Posts: 340
Reply #1 on: Jul 27, 2018
Answer to Question 1

Both are airless worlds with many ancient impact craters. On our Moon, the tides of Earth drew out the mare on the Earth side, while Mercury's lava flows were much less extensive than the mare. But as its core cooled and shrank, Mercury's crust developed huge scarps, great wrinkles that run for hundreds of miles.

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

bclement10

  • Hero Member
  • *****
  • Posts: 560
Reply #2 on: Jul 27, 2018
Thank you!


shewald78

  • Sr. Member
  • ****
  • Posts: 340
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Oasis in space: earthrise over the moon's horizon. Oasis in space: earthrise over the moon's horizon.
Honey Moon Honey Moon
Map of the Moon by Johannes Hevelius from his Selenographia (1647), the first map to include the lib Map of the Moon by Johannes Hevelius from his Selenographia (1647), the first map to include the lib
Women who are monozygotic twins and have the same genes are more similar in their marital happiness Women who are monozygotic twins and have the same genes are more similar in their marital happiness
Temperament refers to stable differences in the emotional reactions of different children to similar ... Temperament refers to stable differences in the emotional reactions of different children to similar ...
Moon Moon
Video: Pericarditis

For a complete list of videos, visit our video library