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.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.