Stones. Stones were not only the building blocks being used to create pyramids, they served as important tools as well. The two main stone types used in construction were limestone and granite. Low-grade limestone was used in creating the inner walls, while smoother white limestone was used on the outer walls.
Answer: The Klondike Gold Rush is credited for helping the United States out of a depression. Still, it had a horrific impact on the local environment, causing massive soil erosion, water contamination, deforestation and loss of native wildlife, among other things. The gold rush also severely impacted the Native people.
Explanation:
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He focused on creating a model communist state, he abolished all privately owned farms and replaced them with collectives, he outlined several five year plans to direct industrialization.
