What early human development was necessary for survival in cold environments? A finding shelter in caves
B banding together in clan groups
C wearing wool clothing for warmth
D creating language to communicate

Please: It is not C, so do not bother with that. I checked several others and people have different answers. If it right, i will mark brainliest

how is that middle school

step-by-step explanation:

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "