Passage Summary: The environment dictates where we build industries, and when the climate shifts significantly, people move around, share ideas, and cause society to advance quickly.

Reasoning: Climate and geology dictate industrial locations, while major climate changes trigger migrations that lead to the sharing of ideas and subsequent civilizational progress.

Analysis: In this 'Most Strongly Supported' question, we are looking for a valid inference based on a chain of events. The stimulus provides a clear causal sequence: Drastic climate shifts lead to migrations, which lead to an intermingling of ideas, which finally leads to rapid advances in civilization. You should look for an answer choice that connects the starting point of this chain to the end result. Since the stimulus uses the word 'always' regarding migrations, the link between climate shifts and the eventual social progress is presented as a very strong, reliable correlation.