Multiple choice

The Sun and Earth both have layers. Unlike Earth, the Sun is entirely made up of

  1. molten lava

  2. hot gases

  3. solid rock

  4. frozen water

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Sun is a star composed almost entirely of hot gases, primarily hydrogen and helium. Unlike Earth, it does not have a solid surface or layers of rock and water.