The answer is: [A]:
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"A groundwater storage area between two impermeable layers of rock."
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Probably A) because Asia has a lot of culure
Canada is the most educated country globally, with 56.71% of adults meeting the OECD criteria.
If a boater sounds five short blasts on a horn, it represents danger, or that the boater does not understand the approaching boat's intentions.
If the boater sees another boat approaching him, and he suspects that something fishy is going on, or he doesn't understand what the other boat is trying to do, he will sound five short blasts on his horn, in order to show that something is wrong.
It is D 110,000,000 or 110 million