1 In your Windows 10 Mobile App list, open Outlook Mail. 2  Select the Hamburger Icon (the 3 horizontal lines) in the top-left corner. 3  Select the Settings (Gear) Icon in the bottom-right corner. 4  Select Accounts. 5  Select + Add Accounts. 6  From Choose an account, select Exchange: Exchange, Office 365.
Mantle (geology) The mantle is a layer inside a terrestrial planet and some other rocky planetary bodies. For a mantle to form, the planetary body must be large enough to have undergone the process of planetary differentiation by density.
Mantle. the layer of the earth between the crust and the core; contains most of the earth's mass; composed mainly of more magnesium and less aluminum and silicon than the crust; temperatures range from 1,000 degrees to 3,700 degrees C.he layer of the earth between the crust and the core; contains most of the earth's mass; composed mainly of more magnesium and less aluminum and silicon than the crust; temperatures range from 1,000 degrees to 3,700 degrees C.