Large circulation patterns in the Sun, dubbed Conveyor Belts, ...

[mydiamond]

Large circulation patterns in the Sun, dubbed Conveyor Belts, transport material from the equator to the poles, then back to the equator at a depth of 300,000 km, take how long to complete a cycle?
 
  A) Less than a day
  B) A few years
  C) A few decades
  D) A few centuries
  E) Tens of millions of years, comparable to the convection cycle in Earth's mantle

Question 2

How does the Sun generate energy today?
 
  A) nuclear fission
  B) nuclear fusion
  C) chemical reactions
  D) gravitational contraction
  E) gradually expanding in size

[scottmt]

Answer to Question 1

C

Answer to Question 2

B

[mydiamond]

Thanks for the timely response, appreciate it

[bigsis44]

Excellent