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

Author Question: The traditional top-down hypothesis of the formation of our galaxy cannot explain a. why not all ... (Read 39 times)

jrubin

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

b


jrubin

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

mcabuhat

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

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.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

The chemistry of polypeptide formation The chemistry of polypeptide formation
Nondisjunction during the formation of haploid cells. Nondisjunction during the formation of haploid cells.
The process of clot formation. The process of clot formation.
Formation of phosphodiester bond Formation of phosphodiester bond
Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe Evolutionary ecologists live and do research in contemporary cultures that maintain all or some aspe
Four Lockheed P-38 Lightning fighters in formation. Four Lockheed P-38 Lightning fighters in formation.
Video: Electrocardiogram Examination

For a complete list of videos, visit our video library