A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms
Correct: The sun is the center of the solar system. It is mostly gas. It is the most massive object in the solar system.
<span>C. obtain and use energy. </span>
The vinegar had turned the whites of the egg clear, so you can see in it.
Hope this helped :)
I think the answer would be 420hg=4,200,000cg
