Final answer:
Rainfall, plant life, animal life, temperature, and wind are the factors used to differentiate climate regions.
Step-by-step explanation:
The factors used to differentiate climate regions include rainfall, plant life, animal life, temperature, and wind. These factors are important because they influence the characteristics of a particular region's climate. For example, regions with high rainfall may have a tropical climate, while regions with low rainfall may have a desert climate. Similarly, different types of plant and animal life are adapted to different climate conditions.
Learn more about Climate regions