Question

students create a model to illustrate how the sun produces energy. what should their model demonstrate about the process of nuclear fusion in the suns core? nuclear fusion in the suns core involves the splitting of helium atoms into hydrogen atoms. nuclear fusion occurs when hydrogen atoms combine to form helium, releasing energy. nuclear fusion is a process where carbon atoms are fused to form oxygen. nuclear fusion is the process of breaking down heavy elements into lighter ones.

Explanation:

Nuclear fusion in the sun's core is the combination of hydrogen atoms to form helium, releasing energy. The first option has the process backwards (it's not helium splitting into hydrogen), the third option is incorrect as carbon - oxygen fusion is not the main process in the sun's core for energy production, and the fourth option describes nuclear fission (breaking down heavy elements), not fusion.

Answer:

Nuclear fusion occurs when hydrogen atoms combine to form helium, releasing energy.