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

Author Question: __________ in Earth's atmosphere absorbs most ultraviolet radiation coming from the Sun. a. ... (Read 91 times)

Mr.Thesaxman

  • Hero Member
  • *****
  • Posts: 514
__________ in Earth's atmosphere absorbs most ultraviolet radiation coming from the Sun.
 
  a. Methane b. Three bound oxygen atoms
  c. Water vapor d. Carbon dioxide

Question 2

A star's apparent magnitude is a measure of
 
  a. how bright it appears to us if it is at its actual distance.
  b. how bright it appears to us at a standard distance of 10 pc.
  c. its energy output per second compared to the Sun.
  d. its mass in solar masses.
  e. its surface temperature in Kelvin.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aadams68

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

b

Answer to Question 2

a




Mr.Thesaxman

  • Member
  • Posts: 514
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


bbburns21

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

For a complete list of videos, visit our video library