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

Author Question: A galaxy is 1.a huge rotating aggregation of stars, gas, and other debris held together by ... (Read 62 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Aug 22, 2018
A galaxy is
  1.a huge rotating aggregation of stars, gas, and other debris held together by gravity.
  2.a large diffuse cloud of gas.
  3.what forms in the center of a cloudlike sphere of gases that flattens and condenses.
  4.a thin cloud from which a sun and planets can form.

Question 2

About ________ gallons of used motor oil pollutes the sea annually.
 a. 240 million
 b. 100 million
 c. 24 billion
 d. 100 thousand


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Aug 22, 2018
Answer to Question 1

1

Answer to Question 2

a


serike

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Aug 22, 2018
Both answers were spot on, thank you once again


parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Aug 22, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye Much of the dark space between stars, as seen in the sky of the image above, is due to the human eye
The two bright stars are (left) Alpha Centauri and (right) Beta Centauri. The two bright stars are (left) Alpha Centauri and (right) Beta Centauri.
the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M the comet Encke riding along its pebbly trail of debris (long diagonal line) between the orbits of M
People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Rotating Furnace for Making Parabolic Telescope Mirrors Rotating Furnace for Making Parabolic Telescope Mirrors
Giant Elliptical Galaxy M87 Giant Elliptical Galaxy M87
Video: Replication of DNA and Chromosomes/ How do cells replicate their DNA? (Animation) no Audio

For a complete list of videos, visit our video library