Answer:
I believe your answer should be B.) Materials were pulled together by gravity. I hope this helps you!
There is only one main element involved in the fusion reactions inside the sun; Hydrogen, but if you need a second element then it is more than likely that the question is asking for the isotope of hydrogen that is called <span>deuterium.
So basically, Hydrogen and Deuterium; an isotope of hydrogen</span>
Answer:
I think it's d
Explanation:
I remember from a couple years ago I had to answer a question similar to this. I'm 90% sure I chose the last answer.
only choose my answer if you agree.
The answer is D cuz I just looked up a lot of it and saw the pics so ya its D
