This topic contains a solution. Click here to go to the answer

Author Question: The Earth's atmosphere blocks most forms of electromagnetic radiation from entering except for ... (Read 95 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
The Earth's atmosphere blocks most forms of electromagnetic radiation from entering except for ___________________ _ and ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

If the spiral density wave were the only thing producing spiral arms, it would be expected that
 
  a. all spiral arms would be gas and dust free.
  b. all galaxies would have only two smooth spiral arms.
  c. the Milky Way would show and irregular pattern of short arms
  d. the Milky Way wouldn't have any spiral arms.
  e. the halo component of the Milky Way would show spiral arms as well.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rnehls

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

visible light; radio waves

Answer to Question 2

B




folubunmi

  • Member
  • Posts: 524
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


ricroger

  • Member
  • Posts: 352
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...

For a complete list of videos, visit our video library