Which feature of Greeks geography explains the ancient Greeks need for trade

The feature of Greek geography that explains the ancient Greeks' need for trade is their lack of natural resources and agricultural land. Greece is a mountainous country with rocky terrain, making it difficult to grow crops and raise livestock. Additionally, its climate is not favorable for large-scale agricultural production. As a result, the ancient Greeks had to rely on trade to obtain essential resources such as grain, timber, metals, and even basic necessities like salt.