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

Author Question: How does metal content vary between young disk stars and older halo stars? Why? What will be an ... (Read 324 times)

09madisonrousseau09

  • Hero Member
  • *****
  • Posts: 559
How does metal content vary between young disk stars and older halo stars? Why?
 
  What will be an ideal response?

Question 2

What two things are needed to create an emission nebula?
 
  A) interstellar gas and dust
  B) hydrogen gas and carbon dust
  C) hydrogen fusion and helium ionization
  D) hot stars and interstellar gas, particularly hydrogen
  E) cool stars and much interstellar dust



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bitingbit

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

Older halo stars are far less abundant in elements heavier than helium than are nearby younger disk stars, which are much richer in the heavier metals produced by later generations of supernovae.

Answer to Question 2

D




09madisonrousseau09

  • Member
  • Posts: 559
Reply 2 on: Jul 27, 2018
Gracias!


Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

For a complete list of videos, visit our video library