The "fuel" of OUR sun is

Question

BlackTom AI · Accepted Answer

The question asks about the primary "fuel" of our Sun, which is the material undergoing fusion in its core.
Option 1: Oil — This is a fossil fuel formed from ancient biological matter and has no role in stellar fusion. It is impractical at stellar temperatures and pressures, so it cannot be the Sun's fuel.
Option 2: Hydrogen — This is correct. In main-sequence stars like the Sun, hydrogen nuclei fuse through nuclear fusion to form helium, releasing energy that powers the star.
Option 3: Oxygen — While oxygen exists in many environments on Earth, it is not the primary fuel of the Sun; fusion in the Sun does not predominantly consume oxygen.
Option 4: Helium — Helium is a product of hydrogen fusion, not the initial fuel. The Sun starts primarily with hydrogen and gradually builds up helium through fusion over time.

Earth & Environmental Science 2025-26 4.2 Module 2-3 Assessment Honor Lock -S- (60 Minutes ASYNC)

The "fuel" of OUR sun is

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