Water that falls as precipitation<span> flows along the surface of the ground. This surface water infiltrates into the ground surface and is held in </span>soil pore spaces<span> and in the fractures of rock formations. Gaining access to groundwater sources therefore requires digging or drilling through the ground and into an aquifer.</span>
The controlled variable is an element that is not changed throughout an experiment, because it’s unchanging state allows the relationship between the other variables being tested to be better understood.
True.In fact, this can only happen in a vacuum
Answer: New species appear as a result of big changes over a short period of time
Explanation:
The polar head of a phospholipid is made of phosphate. The polar head has a negative charge that is made up of phosphate molecules. This polar region attracts water and is positioned outward to interact with the water.
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