The control Group
The control group is the group of mold spores that were not exposed to ultraviolet light, left in the darkness and as such were not altered. Control groups are not altered and serve as some form of measurement of the experimental group. The experimental group is the mold spores group exposed to ultraviolet light and observed to note the difference between it and the control group
Answer:
about 37 years
Explanation:
If 100% of the estimated reserves are used at the current rate, it will take ...
(1.234·10^12 bbl)/(3.3·10^10 bbl/yr) = 37.4 yr
It will take about 37 years to deplete the reserves.
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