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Gas giants generally have lower average temperatures than the terrestrial planets because:
1. They are farther from the sun: Gas giants like Jupiter, Saturn, Uranus, and Neptune are located much farther from the sun compared to terrestrial planets like Earth, Mars, Venus, and Mercury. The distance from the sun affects the amount of sunlight and heat they receive, resulting in lower average temperatures on gas giants.
2. They do not have rocky cores: Gas giants are primarily composed of gases like hydrogen and helium, without a solid rocky surface like terrestrial planets. The lack of a solid surface to retain heat contributes to their lower average temperatures.
So, the main reasons for gas giants having lower average temperatures than terrestrial planets are their distance from the sun and their composition lacking a solid rocky core.
