« previous next »

Author Question: A rock found on Earth that crashed down from space is called ________. A) an impact B) an ... (Read 5 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
on: Jul 27, 2018
A rock found on Earth that crashed down from space is called ________.
 
  A) an impact B) an asteroid C) a meteor D) a meteorite

Question 2

How would you expect a star that formed recently in the disk of the galaxy to differ from one that formed early in the history of the disk?
 
  A) It should have a higher fraction of elements heavier than hydrogen and helium.
  B) It should be much brighter.
  C) It should be higher in mass.
  D) It should orbit the galactic center at a much higher rate of speed.
  E) All of the above would be expected.


lorealeza77

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Wood first appeared in plants called progymnosperms. Wood first appeared in plants called progymnosperms.
Space Space
Rivers on Mars and Earth Rivers on Mars and Earth
Saturn as Seen from Earth Saturn as Seen from Earth
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ... Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
Pelvic rock. Place your right hand over the recipient’s left hip bone. Place your left hand over ... Pelvic rock. Place your right hand over the recipient’s left hip bone. Place your left hand over ...
Video: Properties of macromolecules (Explained with No Audio)

For a complete list of videos, visit our video library