This is a measure of force per unit area.

Pressure is the force exerted by a gas, a liquid or a solid on a surface (or area) .

Its unit according to the International System of Units is Pascal which is equal to and its formula is:  

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it