Which of the following is a non-metal?

Ca
AS
Ро
Ca
O

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

true is the correct answer

hope i