Question

A student says, "Heat from the Sun reaches Earth because air carries it across space." Which statement best explains why this is incorrect?

Options

• Heat travels by conduction in space

• Heat travels by convection in space

• Heat reaches Earth by radiation without a medium

• Space contains hot gas that carries heat

Answer 1

Heat reaches Earth by radiation without a medium

Explanation:

Heat from the Sun travels through empty space by radiation, which does not require a material medium.