Modern observations have shown that the geometry of the Universe ...

[gbarreiro]

Modern observations have shown that the geometry of the Universe is ____.
 
  a. flat, and the Universe must be infinite
 b. flat, and the Universe must not be infinite
 c. open, and the Universe must be infinite
 d. closed, and the Universe must be infinite
 e. closed, and the Universe must not be infinite

Question 2

When two arches in a magnetic field encounter each other, ____ can cause powerful eruptions called ____.
 
  a. solar winds; convective zones
 b. prominences; limb darkening
 c. filaments; coronal holes
 d. supergranules; Coulumb barriers
  e. reconnection events; flares

[alexanderhamilton]

Answer to Question 1

a

Answer to Question 2

e

[gbarreiro]

Thanks for the timely response, appreciate it

[FergA]

Excellent