How are the dishwashing detergent and the sanitizer solution dispensed into the sinks

The system of checks and balances ensures that

The middle east had been subjected to attacks from outside the middle east in ancient, medieval, and modern times. which of the following invasions by outside forces came last in the period of written middle east history before 1300 a.d.?

Ineed with my dbq, i basically just need to bs it the whole way through because my apush teacher sucks but i literally don’t know how to contextualize well and i just need