Thawing of permafrost could create a positive feedback loop as ...

[jho37]

Thawing of permafrost could create a positive feedback loop as vast amounts of carbon are released into the atmosphere, further amplifying warming.
 
  Indicate whether the statement is true or false

Question 2

When light passes from one medium to another, resulting in a change in speed and direction of insolation,
 
  A) transmission happens.
  B) Rayleigh scattering is the predominant effect.
  C) refraction occurs.
  D) it is usually not affected physically.

[ryhom]

Answer to Question 1

TRUE

Answer to Question 2

C