Which discipline post us to understand the past by studying the physical features of the environment

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by

During the age of imperialism, suez canal connected which two bodies of water?

The u.s. government has three branches: executive, judicial, and legislative. each branch plays a different role in making sure laws are passed, enforced, and applied fairly in accordance with the united states constitution. which idea does this scenario best represent?