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

Author Question: Why do astronomers narrow their search to the habitable zone of other star systems? a. the most ... (Read 53 times)

jlmhmf

  • Hero Member
  • *****
  • Posts: 552
on: Jul 27, 2018
Why do astronomers narrow their search to the habitable zone of other star systems?
 
  a. the most likely place to support planets with thick atmospheres
 b. the least likely place to have zero ultraviolet radiation
 c. the most likely place with liquid water, and extraterrestrial life
 d. the most likely place to have oxygen in the atmosphere
 e. the least likely place to have wide temperature ranges on the surfaces of planets

Question 2

What is the name for the radio frequency window astronomers use to search for extraterrestrial communication?
 
  a. Drake window
  b. Phoenix waves
  c. SETI window
 d. water hole
 e. OH hole


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

d


jlmhmf

  • Member
  • Posts: 552
Reply 2 on: Jul 27, 2018
Wow, this really help

shailee

  • Member
  • Posts: 392
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Artist's conception of the birth of a star within a dense molecular cloud. Artist's conception of the birth of a star within a dense molecular cloud.
A Star with Three Planets A Star with Three Planets
Major Wind Systems: Sea and Land Breezes Major Wind Systems: Sea and Land Breezes
Prefilled Unit-Dose Systems Prefilled Unit-Dose Systems
Florometra Crinoid or Feather Star, Phylum Echinodermata. Monterey Canyon, California. Florometra Crinoid or Feather Star, Phylum Echinodermata. Monterey Canyon, California.
Video: Prone Position

For a complete list of videos, visit our video library