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

Author Question: What do meteorites reveal about the solar system? A) They reveal that the solar system once ... (Read 162 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Jul 27, 2018
What do meteorites reveal about the solar system?
 
  A) They reveal that the solar system once contained 10 planets.
  B) They reveal that the early solar system consisted mostly of hydrogen and helium gas.
  C) They reveal that the age of the solar system is approximately 4.6 billion years.
  D) They reveal that meteorites are much older than the comets and planets.
  E) Nothing, because they come from other star systems.

Question 2

What produces the 21-cm radio line that we can be used to map the Milky Way Galaxy?
 
  A) ionized hydrogen
  B) atomic hydrogen
  C) helium
  D) carbon monoxide
  E) molecular hydrogen


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

at

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

B


bobbysung

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 27, 2018
TY


at

  • Sr. Member
  • ****
  • Posts: 359
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Anatomical Charts Muscular System Anatomical Charts Muscular System
Disorders of the Respiratory System Disorders of the Respiratory System
Pi molecular orbital system of PLP-amino acid Schiff base Pi molecular orbital system of PLP-amino acid Schiff base
The Human Olfactory System The Human Olfactory System
Earth’s Climate System Earth’s Climate System
Overview of the Solar System Overview of the Solar System
Video: Structure of a Ribosome

For a complete list of videos, visit our video library