What simple machine is a screw built on? what famous person has been credited with inventing the screw or auger?

According to the united nations refugee agency, more than 2/3 of the world's refugees come from just five countries. which country is not on that list? a) turkey b) myanmar c) afghanistan d) south sudan

Which country's action would be in violation of section ii of the agenda 21 plan

Asap! ! ! western china, northern china and southeastern mongolia are all located in what climate zone? tropical wetdesert humid subtropical humid continental