Shapley found the distance to the center of the galaxy by ...

[CORALGRILL2014]

Shapley found the distance to the center of the galaxy by studying the distance to open clusters.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

A ZAMS star evolves __________ and to the __________ on the H-R diagram because ________________.
 
  a. downward, left, the core expands which causes the outer layers to expand b. upward, right, the core contracts which causes the outer layers to expand
  c. upward, left, the core expands which causes the outer layers to contract d. downward, right, the core contracts which causes the outer layers to contract

[durant1234]

Answer to Question 1

False

Answer to Question 2

b

[CORALGRILL2014]

Thanks

[durant1234]

Welcome