Multiple choice

What is the primary source of energy for Earth's climate system?

  1. Heat from Earth's interior

  2. The Sun

  3. Electricity generating power plants

  4. Oil & gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Sun provides the vast majority of the energy that drives Earth's climate system, powering atmospheric circulation, ocean currents, and the water cycle. Internal heat from the Earth and human energy generation contribute negligible amounts of energy to the climate system by comparison.

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