Why is pollution of groundwater a greater environmental hazard ...

[kaid0807]

Why is pollution of groundwater a greater environmental hazard than pollution of surface water?
 
  A) The opposite is true. Surface water is a greater hazard because it is more integrated into our environment.
  B) The opposite is true. Surface water moves more rapidly and, hence, is more difficult to treat.
  C) Groundwater is much more vast, moves slowly, and is not as accessible.
  D) Photosynthetic organisms in groundwater can die off no longer producing the oxygen we need.

Question 2

Which of the following is the most detrimental?
 
  A) bacterial sewage flowing through sand
  B) bacterial sewage flowing through loose sediments
  C) bacterial sewage flowing through unsaturated soil
  D) all of the above
  E) only A and B

[JaynaD87]

Answer to Question 1

C

Answer to Question 2

A

[kaid0807]

Gracias!

[diana chang]

Thanks for the timely response, appreciate it