Over In order for an object to be buoyant, there must be a difference in
the area of the object.
A. force of gravity
B. density
C. fluid pressure
D. mass

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.