The resources that are provided by earth are known as resources.
a. synthetic
b. natural
c. renewable
d. nonrenewable

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.

After railroads, the next revolution of transportation came with the development of (a) automobile (b) telegraph (c) steam engine

Part a: in paragraph 2, you can infer from the phrase "..thegreat triumph in mathematics" that the lieutenant is: