Who help's to determine crops that are best suited for a given piece of land.

Distance that the transcontinental railroad covered from omaha to san francisco.

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.

Which was not a country that massively built up its navy in the early 1900s? germany china united statesbritain