Which of the following represent human systems? - hoover dam - genetic engineering - volcanic eruptions - the panama canal - plate tectonics

Which statement describes why the us forest service is important a-it protects ecosystems, supervises public access of lands, and manages wilderness areas. b-it supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws. c- it manages wilderness areas, enforces federal wildlife laws, and foreign governments with international conservation efforts. d- it enforces federal wildlife laws, foreign governments with international conservation efforts, and protects ecosystems.

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.

Select the word from the list that best fits the definition a mountain range in northeast central asia answer is altay shan