This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the main visual difference between the lunar highlands and the lunar maria? What are the ... (Read 152 times)

ahriuashd

  • Hero Member
  • *****
  • Posts: 535
on: Jul 27, 2018
What is the main visual difference between the lunar highlands and the lunar maria? What are the implications of this observation?
 
  What will be an ideal response?

Question 2

What is a planetary nebula?
 
  A) The bipolar jets ejected by a T Tauri variable
  B) A planet surrounded by a glowing shell of gas
  C) The disc of gas and dust surrounding a young star that will soon form a solar system
  D) The ejected envelope, often bipolar, of a red giant surrounding a stellar core remnant
  E) A type of young, medium mass star


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kardosa007

  • Sr. Member
  • ****
  • Posts: 300
Reply #1 on: Jul 27, 2018
Answer to Question 1

The lunar highlands are very heavily cratered and the lunar maria are generally smooth. (More specifically, the maria contain only 3 percent as many craters per unit area as the highlands.) The difference in the amount of craters shows that the maria formed after the highlands, at the end of the heavy bombardment phase of the solar system. Radiometric dating of rocks from the highlands and maria shows that the heavy bombardment phase lasted no longer than a few hundred million years.

Answer to Question 2

D


ahriuashd

  • Member
  • Posts: 535
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Evidence of Retrieval of Visual Memories of Movement Evidence of Retrieval of Visual Memories of Movement
Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four Table 6.1 illustrates the main regime types and their differences. It breaks the regimes into four
María and Julián Martinez, Jar, San Ildefonso Pueblo, New Mexico. María and Julián Martinez, Jar, San Ildefonso Pueblo, New Mexico.
Difference between chromosomes, chromatids, and chromatins Difference between chromosomes, chromatids, and chromatins
The two visual fields of each eye are nasal (medial) and temporal (lateral) The two visual fields of each eye are nasal (medial) and temporal (lateral)
Main components of the human endocrine system and the effects of their secretions Main components of the human endocrine system and the effects of their secretions
Video: Biological organic compounds

For a complete list of videos, visit our video library