How many khan academy users have over 1 million points

Black death spread because of what problem in medieval europe? which one is it i need the answer quick . a- overcrowded cities b-too many farm animals c-not enough qualified doctors d-all of the above

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

Based on the data within your schedule and curve are you using your resources efficiently