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 122 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?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Part A - Overview of the vertebrate nervous system Part A - Overview of the vertebrate nervous system
Disorders of the Urinary System Disorders of the Urinary System
The cardiac conduction system. The cardiac conduction system.
A “reduced power” warning light indicates a fault with the electronic throttle control system on ... A “reduced power” warning light indicates a fault with the electronic throttle control system on ...
Male Reproductive System - Semen Male Reproductive System - Semen
Female Reproductive System Female Reproductive System
Video: Introduction to Spirometry

For a complete list of videos, visit our video library