I think i did this before and i think i b and i think it was right if not im sorry
Answer:
A.
Explanation:
It's sugar or glucose and oxygen
The best estimate<span> for </span>Earth's age<span> is based on radiometric dating of fragments from the Canyon Diablo iron meteorite. From the fragments, </span>scientists calculated<span> the relative abundances of elements that formed as radioactive uranium decayed over billions of years.</span>