What do aquifers and reservoirs have in common?
A) They're both underground
B)They're both made of rock
C)They're both man-made
D)They're both filled with freshwater

The answer is they are both filled with fresh water

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Explanation:

i would say it is

emerging idea only occurs as a raw idea that could appear out of nowhere. meanwhile, to reach scientific consensus , that idea must be structured and tested over and over again through various experiments. the scientific consensus transforms the raw idea into idea that is more reliable through the process of scientific elimination.