Final answer:
The average temperature is the key characteristic differentiating tropical and temperate rainforests.
Explanation:
The temperature is a characteristic that differentiates tropical and temperate rainforests. Tropical rainforests have constant high temperatures throughout the year due to their low latitude location, while temperate rainforests experience seasonal temperature variations.
For example, tropical rainforests are found near the equator and have year-round warm temperatures, while temperate rainforests at mid-latitudes like North America have distinct seasons with warm summers and cold winters.
Therefore, the characteristic that distinguishes tropical and temperate rainforests is the average temperature.
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