An aquifer<span> is an underground layer of </span>water<span>-bearing </span>permeable rock, rock fractures or unconsolidated materials (gravel<span>, </span>sand<span>, or </span>silt<span>) from which </span>groundwater<span> can be extracted using a </span>water well<span>. The study of water flow in aquifers and the characterization of aquifers is called </span>hydrogeology<span>. Related terms include </span>aquitard, which is a bed of low permeability along an aquifer,[1]<span> and </span>aquiclude<span> (or </span>aquifuge<span>), which is a solid, impermeable area underlying or overlying an aquifer. If the impermeable area overlies the aquifer, pressure could cause it to become a confined aquifer.</span>
Answer:
I believe the answer is B the empty quarter. hope I helped
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Cilization comes from the latin word civis meaning someone who lives in a town</span>
Need for raw materials because of the plentiful amount that is in Africa, such as gold, diamonds, wood, and coal.
answer:
The rock is more dense.
Explanation:
If you look at the rock cycle, you'll see when sedimentary rock goes under extreme heat and pressure, it becomes metamorphic rock. So the metamorhpic rock is so much more dense that the rock is like a sedimentary times ten! I mention it's more dense because they're is more rock to erode away. Making it much harder to wear away the metamorphic rock.
