News Â· 10:18 p.m. Â· July 29, 2012. Celebrity Net Worth recently compiled a list of the 20 richest living rappers. At first we were sure that reading their list was going to make us feel very, very bad about the current state of our checking accounts, but no worries â each of these rappers is so wealthy that it's impossible to put into perspective.
Definition of aquifer for English Language Learners. : a layer of rock or sand that can absorb and hold water.
An aquifer is a layer of water in the soil. A well is a hole drilled into that soil that will permit water to fill the lower levels of that hole. Water is then pumped from the â¦ well. A pump connected to a metal pipe is lowered to the bottom of the well. The pump is generally operated by a motor located at the surface. The pump forces water from the aquifer up the pipe and to the distribution point at the surface.