Question

WILL MEDAL AND FAN!!!


In which of the following places is it more difficult to determine if there is pollution?
Answer choices:
1. aquifer
2. stream
3. air
4. pond

Answer 1

@agent0smith @AccidentalAiChan @adrynicoleb @bibby @blah124 @Compassionate @chucky00 @Directrix @hartnn @lncognlto @Luigi0210 @petiteme @robtobey @skullpatrol @thomaster @UsArmy3947 @wolfe8

Answer 2

Ok Petite says Aquifer

Answer 3

:)

Answer 4

Ok thanks

Answer 5

We think this is because: An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well.

http://en.wikipedia.org/wiki/Aquifer

But I might actually think air is hard.