Due to the lack of To use for building cabins, many of the prairie home were made of

Sod

Explanation:

Due to lack of trees to use for building cabins, many of the prairie home were made of sod (Grass and the soil beneath it held together by roots). The Prairies can have deep fertile soil with tall grass in the landscape or dry and not very fertile soil with short grasses, but they always have little to no trees.

bbgftrtyc

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.