A political border that is established by a physical geographic feature such as a mountain range or a river is a A. Natural boundary
B. Geometric boundary
C. Cultural boundary
D. Ethnic boundary

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

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.