Multiple choice

Why do meteors glow?

  1. Chemical reactions in the core of meteors heat them up, liberating light.

  2. Friction due to atmosphere heats them up, liberating light.

  3. Gravitational force of Earth heats them up, converting potential energy to heat energy.

  4. Entering Earth's magnetic field ionises their particles and they start glowing.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The friction due to the atmosphere heats them up and they glow.

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