The correct answer is:
That’s because Earth is a solid mass, while the Sun is a gaseous globe.
The explanation:
when the Earth's geosphere -- the solid part of the Earth made up of the core, the mantle and the crust -- is primarily composed of only four. These four are iron, oxygen, silicon and magnesium. These elements make up more than 90 percent of the Earth's mass.
The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.