<span>A _superkey___ is any key that uniquely identifies each row.</span>
Answer:
Friction (drag)
Explanation:
The force resisting motion through a fluid is a type of friction, that is called drag.
Answer:
Cluster Column Charts.
Explanation:
Clustered column chart:-It displays multiple data series in separate vertical columns. Each series have the same axis labels.Clustered vertical columns thus allow direct comparison of multiple data series.When having three data series you can compare their heights also.So we conclude the answer is Cluster Column Charts.