The structure of Earth can be defined in two ways: by mechanical properties such as rheology, or chemically. Mechanically, it can be divided into lithosphere, asthenosphere, mesospheric mantle, outer core, and the inner core. The interior of Earth is divided into 5 important layers. Chemically, Earth can be divided into the crust, upper mantle, lower mantle, outer core, and inner core.
flat dollar. Definition. A description of an absolute amount, as opposed to an amount determined as a function of another amount, such as a percentage. Most Viewed.
[singular] : a large number or amount : a lot â used in the phrases a good deal or a great deal. 1  It doesn't cost a great deal of money. [=doesn't cost much money] 2  I spent a good deal of time [=a lot of time] thinking about it. 3  It would mean a great deal to us if you would come. 4  I learned a great deal from my mistakes.