Heat of sun reaches the earth by ________?

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Heat of sun reaches the earth by ________? Answer: Radiation

Heat from the sun reaches the Earth through radiation, which is the transfer of energy via electromagnetic waves (like visible light and infrared) that can travel through the vacuum of space without needing a medium, unlike conduction or convection.

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.