Most of our planet is composed of crests
Answer by YourHope:
Hi! :)
The regions colored BROWN on the map above represent the polar climates of the world!
:)
Each rectangle is (18cm)(10cm)=180 square cm.
180 square cm/45 square cm=4. she cuts four triangles from each rectangle
(4 patches/rectangle)(32 rectangles)=128 patches
Answer=128 patches
The answer is C.15, USSR broke into 15 republics including Russia itself.