How does groundwater become polluted? a. pollutants mixed with water pass through permeable layers above the aquifer. b. factories dump their waste directly into aquifers. c. refuse infiltrates the water table when garbage is dumped. d. all of the above select the best answer from the choices provided

The groundwater becomes polluted when the pollutants get mixed with water and pass through the permeable layers above the aquifer.  

One of the most essential sources of water for irrigation is groundwater. Unfortunately, groundwater is vulnerable to pollutants. The contamination of groundwater takes place when man-made components like oil, gasoline, chemicals, and road salts get into the groundwater and make it unfit for human consumption.  

the answer is A if you don't want to read that.

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a. suckling by young

b. hypothalamus

c. dopamine

d. trh

e. anterior pituitary

f. mammary glands

g. milk production