Planets are colder the farther they are from the Sun because they receive less sunlight and heat. The Sun’s energy gets weaker as the distance increases, so the planets located farther away do not warm up as much. For example, planets like Neptune, which are far from the Sun, are much colder than planets like Mercury or Venus, which are closer. The temperature of a planet depends on how much sunlight it gets, and this decreases with distance from the Sun.
This question related to Chapter 12 Science Curiosity Class 6th NCERT.
From the Chapter 12. Beyond Earth.
Give answer according to your understanding.
Sunlight weakens with distance, so outer planets receive less heat.
Explanation: This distance results in colder temperatures on planets like Neptune compared to Mercury.
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