Question

scientists around the world have been working for decades on perfecting the process of nuclear fusion in the lab. which statement justifies this research?

• scientists are looking for a way to generate an unlimited source of hydrogen.
• scientists are looking for a way to absorb the energy produced by nuclear bombs.
• scientists are looking for a way to produce the uncommon noble gas helium.
• scientists are looking for a way to create cheap, safe, and sustainable energy.

Explanation:

Nuclear fusion research focuses on replicating the energy-producing process of stars. The core goal is to develop an energy source that is low-cost, has minimal safety risks compared to fission, and uses widely available fuel (like hydrogen isotopes), making it sustainable. The other options are incorrect: fusion uses hydrogen as fuel (not generates it), it does not absorb nuclear bomb energy, and helium is a byproduct, not the main goal.

Answer:

D. Scientists are looking for a way to create cheap, safe, and sustainable energy.