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

Author Question: The Earth's atmosphere blocks most forms of electromagnetic radiation from entering except for ... (Read 43 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
Answer to Question 1

visible light; radio waves

Answer to Question 2

B


folubunmi

  • Member
  • Posts: 524
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

pratush dev

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Excellent

« 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?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Earth Latitude Tilt Earth Latitude Tilt
Wood and wood-like synthetics are classic and attractive forms of fencing for horses Wood and wood-like synthetics are classic and attractive forms of fencing for horses
The Electromagnetic Spectrum The Electromagnetic Spectrum
Earth’s Revolution and Rotation Earth’s Revolution and Rotation
Weather maps: Pictures of the atmosphere Weather maps: Pictures of the atmosphere
Earth’s Spheres Earth’s Spheres
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library