What is the best way to format a cover letter? A: informally, with a heading, introduction, body and closing B: formally, showing confidence with appropriate technical language C: informally, with a brief mention of the attached resume D: formally, with a heading, introduction, body and closing

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.