Answer:
People <u>do need</u> a pump to push the water to the surface from confined aquifers.
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The second stage takes place in the estogagus which leads to the stomach then the small intestine then the big intestine and then the toilet there
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<h2>Two pieces of information </h2>
Sonar is an instrument which is used to search for things which are underwater. It is also used to find the depth of water by giving out ultrasonic vibrations into the water. The time which the vibrations take to return assists to find the distance of the reflecting surface.
The moons orbit is 27 days.