I believe the answer you are looking for is the "Neolithic Period".
Answer would be True since Russia became Communist in 1917.
If the mountain in terms of isostatic adjustment following a period of significant erosion the continental crust underneath will be uplifted. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The Answer Is Humans
Hope This Helps!
