Author Question: Unlike the United States, Canada has experienced considerable emigration, or out-migration, most ... (Read 138 times)

erika

  • Hero Member
  • *****
  • Posts: 522
Unlike the United States, Canada has experienced considerable emigration, or out-migration, most often to Europe.
 
  Indicate whether the statement is true or false

Question 2

Why are bright, blue stars and dim, red stars not good candidates for supporting habitable planets?
 
  What will be an ideal response?



marict

  • Sr. Member
  • ****
  • Posts: 304
Answer to Question 1

FALSE

Answer to Question 2

For dim, red stars, the habitable zone typically exists within the tidal locking radius of the star, which forces the same side of a planet in the habitable zone to face the star at all times. This is detrimental to the habitability of the planet, as the two sides of the planet will experience extreme conditions.
Bright, blue stars spend a relatively small amount of time in the main-sequence stage of their evolution. This leaves significantly less time for life to evolve, thus decreasing the habitability of the planet. Furthermore, bright, blue stars have high UV fluxes which could be detrimental to life, particularly for plants on a planet without a significant UV screen.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

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

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Thyroid conditions may make getting pregnant impossible.

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?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

For a complete list of videos, visit our video library