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

Author Question: Which of the following is true of quasars? A) Quasar eruptions became less common as galaxies ... (Read 28 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jul 27, 2018
Which of the following is true of quasars?
 
  A) Quasar eruptions became less common as galaxies became more stable.
  B) Quasars did not exist until about five billion years ago.
  C) Quasars have comparatively smaller look-back time than most galaxies.
  D) Quasars eruptions were not common when galaxies were actively forming and colliding.

Question 2

Which of the following is true of active galaxies?
 
  A) They are often distorted.
  B) They do not have a black hole.
  C) They do not have an accretion disk.
  D) They are much larger than many galaxies.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


ENagel

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 27, 2018
Thank you!


zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 27, 2018
Always glad to help...


« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Common ancestry predicts where we should find vestigial limbs Common ancestry predicts where we should find vestigial limbs
Common Cinquefoil Common Cinquefoil
Galaxies Forming by Combining Smaller Units Galaxies Forming by Combining Smaller Units
Common Blood Test Groups Common Blood Test Groups
Common Laboratory Tests and Their Normal Values Common Laboratory Tests and Their Normal Values
Common Abbreviations and Symbols Used by Massage Therapists Cont. Common Abbreviations and Symbols Used by Massage Therapists Cont.
Video: The life cycle of protein

For a complete list of videos, visit our video library