How can simple models help us understand a complex economy​

What federal law makes marijuana illegal i know it's a schedule 1 drug but what law specifically gives the federal government the ability to arrest or fine you over marijuana i have only been able to find info on the scheduling of the drug but it never says this or that is illegal it just says that it's a schedule 1 drug i need the wording exactly my english teacher says that if i don't have it my paper is null and void

What factors the economies of the muslim empires prosper?

Two legal aliens and their child immigrate to the united states as refugees. after years of working towards citizenship, the legal aliens attain citizenship through the naturalization process. the child is automatically granted citizenship if he is under the age of a. 18 b. 21 c. 25 d. 35 select the best answer from the choices provided a b c d