In the closed universe model, the geometry of spacetime in two dimensions resembles thesurface of a:
A)flat piece of paper.
B)saddle.
C)cylinder.
D)sphere.
E)pyramid.

Question

Quizplus · Accepted Answer

A closed universe model implies a finite universe where spacetime is curved back on itself, resembling the surface of a sphere. In the closed universe model, the geometry of spacetime in two dimensions is curved like the surface of a sphere.

In the Closed Universe Model, the Geometry of Spacetime in Two