There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements. CROSS SECTION shows Earth's structure.
â The operating margin was an especially useful metric or ratio during the meeting as we wanted the discussion to include revenue statistics.
Net margin is net profit divided by net revenues, often expressed as a percentage. This number is an indication of how effective a company is at cost control. The higher the net margin is, the more effective the company is at converting revenue into actual profit.