Answer:
i think it is D Beaker A is used as an experiment to see the effects of air on limestone. Beaker B is used as an experiment to determine the effects of plain water with a neutral pH on limestone. Beaker C is used as an experiment to determine how acid affects limestone. Beaker D is used as a second experiment to determine how acid of a higher concentration affects limestone compared to acid of a lower concentration. There are no controls in this experiment because a controlled experiment was not practical for this situation.
Explanation:
I think the answer is a single data point.
Answer:
daily fee
Explanation:
it means "If you want to use the wireless network in the airport then you must pay daily fee unless you are a subscriber to the service."
Answer:B No, she used the diameter instead of the radius measure.
Explanation:
Correct Edge 2021