8. The chemical formula for magnesium phosphate is Mg3(PO4)2. What does the 2 in the formula represent? A. There are 2 groups of PO4 in the molecule.
B. There are 2 molecules of Mg3(PO4) in total.
c. There is 2 times as much phosphorus as there is oxygen in magnesium phosphate,
D. There is 2 times as much oxygen as there is phosphorus in magnesium phosphate.

sunlight and water

explanation:

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

the answer is d p: cell, q: organ, r: organ system, s: tissue

i think the answer is c hope this