« previous next »

Author Question: A rock found on Earth that crashed down from space is called ________. A) an impact B) an ... (Read 42 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?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Views of Earth’s Surface Views of Earth’s Surface
Anatomically modern humans from the Israeli cave sites of Skhul and Qafzeh may be the earliest found Anatomically modern humans from the Israeli cave sites of Skhul and Qafzeh may be the earliest found
Rock Art: Boat And Sea Battle Rock Art: Boat And Sea Battle
Impact of zebra mussels on members of a Great Lake nearshore Impact of zebra mussels on members of a Great Lake nearshore
Vitamins Found Widely in the Food Groups Vitamins Found Widely in the Food Groups
Video: Major Elements in Biological Molecules: Nucleic acids

For a complete list of videos, visit our video library