Sunny 16 and Basic Exposure Constant

The Sunny 16 should be used because it's going to almost always give you sharp, good photos when shooting outside on a sunny day.
What ISO to use with F 16 (Sunny 16)? ISO 100
A "stop" is a general term used in photography to describe the change in brightness.
How many stops brighter is a room if you start with one lightbulb and then add another?
+2 Stops or double as bright.
 Using the "Standard full-stop f-number scale" what aperture settings represent a full stop worth of light? The next whole number up.

NOTES:

• The proper exposure is determined by the ISO of the film/sensor setting
• For ISO 100, at mid day(10am-5pm) outdoors with sunlit mid-toned object, set the aperture at f16, and the shutter at 1/100th