You plan to number each account in your Chart of Accounts. You want to have major categories and 2 levels of sub-categories. Each level of category will be represented by a digit. You want to have room in your numbering for at least ten accounts within the lowest level of sub-categories. How many digits do you need in your account numbers?

A) acceleration. this seems to be the one that makes sense.

Hello,your answer would be iron! plz mark me brainliest! hope this !

Answer;

hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.

explanation; convection currents are the circular pathways taken by a fluid that enhances heat transfer by the process known as convection which occurs in fluids.convection currents transfer heat from one place to another by mass motion of a fluid. earth mantle is in a semi-liquid state and behaves like any other fluid, rising up from the bottom of the mantle after becoming hotter and less dense from heat of the earth's core, as the rock loses heat into the earth's crust it becomes cooler and more dense, then sinking back down to the core, then repeating the cycle.