On the surface of a sphere the shortest distance between two ...

[meagbuch]

On the surface of a sphere the shortest distance between two points is
 
  A) an arc on a great circle.
  B) a straight line.
  C) a circle.
  D) a triangle.
  E) a curvy line.

Question 2

What is stellar parallax?
 
  A) It is the daily rise and set of the stars.
  B) It describes the fact that stars are actually moving relative to one another, even though to our eyes the stars appear fixed in the constellations.
  C) It is the slight back-and-forth shifting of star positions that occurs as we view the stars from different positions in Earth's orbit of the Sun.
  D) It is the change in the set of constellations that we see at different times of year in the evening sky.

[princessflame2016]

Answer to Question 1

A

Answer to Question 2

C

[meagbuch]

Both answers were spot on, thank you once again

[princessflame2016]

Great! Please up vote