preserve=/prɪˈzɜrv/ [pri-zurv]:to keep alive or in existence; make lasting: to preserve our liberties as free citizens.
-Some products help preserve the earth, one home at a time.
pressure= /ˈprɛʃər/ [presh-er] :the exertion of force upon a surface by an object, fluid, etc., in contact with it: the pressure of earth against a wall.
-Pressure is defined as force per unit area
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