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

Author Question: The traditional top-down hypothesis of the formation of our galaxy cannot explain a. why not all ... (Read 71 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
The traditional top-down hypothesis of the formation of our galaxy cannot explain
 
  a. why not all globular clusters are the same age.
  b. why the youngest globular clusters are in the outer halo.
  c. why the oldest stars are metal poor but not completely metal free.
  d. streams and rings of scattered stars in the halo.
  e. All of the other choices are correct.

Question 2

Emission nebulae are also called ________ because they are composed of ionized hydrogen.
 
  a. HI regions
  b. HII regions
  c. Bok globules
  d. HeI regions
  e. reflection nebulae



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

iman

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

e

Answer to Question 2

b




jrubin

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Excellent


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

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?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

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

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

For a complete list of videos, visit our video library