Asked by Maryam (:

How do living organisms help purify water?

Why will you get a smaller volume at the end of a experiment than what you started with?

It is okay to taste your water at the end of an experiment? Why or why not?
Answered by Ms. Sue
http://www.ec.gc.ca/eau-water/default.asp?lang=En&n=06F1403C-1

Whether you taste the water depends upon what you added to it.

If you don't know, do not taste it!

Answered by Maryam (:
Thank You.
Answered by Ms. Sue
You're welcome.