Inches of Mercury Is Something That Would Only Be Used

Multiple Choice

Inches of mercury is something that would only be used in America.Elsewhere in the world,the mercury height would be in millimeters,or about 760mm (76cm) .Mercury has a density of about 13.56 g/cm3,or in other words,each cm of mercury weighs about 13,300 dynes.So 760mm of mercury weighs 1,013,000 dynes.1 mb is 1 dyne/cm2,so what is the air pressure in mb?

A) 760 mb
B) 1,000,000 mb
C) 1013 mb
D) 1) 013 mb