Question

question 14
what is the difference between runoff and infiltration of water that has fallen back to
the surface?
runoff is the first step to the infiltration process
runoff is polluted whereas infiltration is clean.
runoff flows back to bodies of water, whereas infiltration becomes groundwater.
runoff prevents infiltration from contaminating the drinking water supply to keep humans
safe.

question 15
which of the following best describes why is water a limited but renewable resource?
there is a large amount of it but has a yearly subscription that can be renewed so you still
have access to it.
there is a limit to how much you can use in a lifetime and if you need more you must renew
the water that you have already used.
there is only a fixed amount on the planet so once it is used up it will be gone forever.
there is a small amount of it but it can be cleaned and used again.

Explanation:

Question 14: Runoff is surface water moving to bodies like rivers/lakes; infiltration seeps into soil to form groundwater.
Question 15: Water is limited (finite freshwater accessible) but renewable via natural cycles/cleaning for reuse.

Answer:

Question 14: Runoff flows back to bodies of water, whereas infiltration becomes groundwater.
Question 15: There is a small amount of it but it can be cleaned and used again.