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

Author Question: What evidence do we have that the halo population of stars are older than other stars in the galaxy? ... (Read 79 times)

james

  • Hero Member
  • *****
  • Posts: 573
on: Jul 27, 2018
What evidence do we have that the halo population of stars are older than other stars in the galaxy?
 
  A) They are farther away.
  B) They have higher masses than other stars in the galaxy.
  C) They have fewer planets.
  D) They have a smaller proportion of heavy elements.
  E) They move slower than other stars in the galaxy.

Question 2

What is the ultimate fate of an open universe?
 
  A) the Big Crunch
  B) Stars will expand away from each other and galaxies effectively evaporate.
  C) All matter decays to a low-density sea of photons and subatomic particles.
  D) All matter eventually ends up in massive black holes.
  E) Individual stars die but their gas is recycled through the interstellar medium and new stars form in a never-ending process.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


james

  • Hero Member
  • *****
  • Posts: 573
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

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?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

The Dugong is an endangered species; the largest remaining population is found in Australian waters The Dugong is an endangered species; the largest remaining population is found in Australian waters
Stars and the Interstellar Medium Stars and the Interstellar Medium
Stars and the Interstellar Medium Stars and the Interstellar Medium
Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
SBTRKT - Look at Stars Ft. Sampha SBTRKT - Look at Stars Ft. Sampha
By how many times will the population of bacteria have increased after 6 h? By how many times will the population of bacteria have increased after 6 h?
Video: Phases of the Female Reproductive Cycle - Hormonal regulation

For a complete list of videos, visit our video library