Answer:
Abiotic
Explanation:
They aren't a living organism so it's abiotic I assume.
Th correct answer would be D! Hope this helps
Answer:
Unfortunately, you can rarely identify a mineral only by its color. Sometimes, different minerals are the same color. For example, you might find a mineral that is a gold color, and so think it is gold. But it might actually be pyrite, or “fool's gold,” which is made of iron and sulfide.
Explanation:
the (drug and control) are the variable that you will change throught the conducted investigation.