Our Universe is a ____________-dimensional mesh composed of stringlike filaments and screenlike walls, whose long dimensions are on the order of ____________ light-years.

Question

Quizplus · Accepted Answer

The concept being described here is that of the cosmic web or large-scale structure of the universe. The current understanding is that the universe is a three-dimensional mesh-like structure, with long filaments (one-dimensional) and walls or sheets (two-dimensional) made up of dark matter and gas. These filaments can stretch for hundreds of millions of light-years, while the sheet-like walls can be up to tens of millions of light-years in thickness, although they are much larger in extent. Therefore, the best choice for the given question is D, which correctly identifies the universe as three-dimensional and presents the correct scale for its largest structures.

Our Universe Is a ____________-Dimensional Mesh Composed of Stringlike Filaments