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

Author Question: The canals of Mars were eventually found to be crustal faults. Indicate whether the statement is ... (Read 25 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
The canals of Mars were eventually found to be crustal faults.
 
  Indicate whether the statement is true or false

Question 2

How do astronomers know that the nuclei of some galaxies are active?
 
  a. Their nuclei are much brighter than expected.
  b. The orbits of stars near the center of the galactic nuclei are faster than expected.
  c. The luminosity of the nuclei varies over time.
  d. The color of the nuclei is different than expected.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cpetit11

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 27, 2018
Answer to Question 1

F

Answer to Question 2

C


D2AR0N

  • Hero Member
  • *****
  • Posts: 561
Reply #2 on: Jul 27, 2018
TY


cpetit11

  • Sr. Member
  • ****
  • Posts: 321
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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).

The most abundant elements found in living organisms The most abundant elements found in living organisms
Northern ice cap of Mars in 1999 Northern ice cap of Mars in 1999
Mars 3 lander on a 1972 Soviet stamp. Mars 3 lander on a 1972 Soviet stamp.
Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth Animation of the apparent retrograde motion of Mars in 2003 as seen from Earth
Rivers on Mars and Earth Rivers on Mars and Earth
Water on Mars! Water on Mars!
Video: Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library