Thinking is the mental use of information to solve a problem, make a decision, or create a concept
Hey don't read this...
D)<span>by looking at total product, marginal product, and changes in both after changes in inputs
</span> :D Now that you've seen this you will get a perfect A on the test ^.^
Pass this on to someone's answer and replace my answer with the answer you get.
HAVE FUN and GOOD LUCK :P
Answer:
1%
Explanation:
and most of that 1% is groundwater