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 161 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?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Digestive System Digestive System
Frequency coding in the nervous system: Threshold stimulus. Frequency coding in the nervous system: Threshold stimulus.
Active solar technologies use for heat, cool, and produce electricity Active solar technologies use for heat, cool, and produce electricity
The Central and Peripheral Nervous System The Central and Peripheral Nervous System
The central nervous system is composed of the brain and the spinal cord The central nervous system is composed of the brain and the spinal cord
The renin–angiotensin–aldosterone system The renin–angiotensin–aldosterone system
Video: Apicomplexan life cycle Animation

For a complete list of videos, visit our video library