All of these but the nosebleeds seem correct, but something much stronger like cocaine can cause nosebleeds.
But if you want just ONE answer 'impaired memory and learning' seems like the best one to pick because that is one of the most noticeable signs of marijuana use.
This website talks about the symptoms of use, I trust its accuracy:
https://www.webmd.com/mental-health/addiction/marijuana-use-and-its-effects#1
The temperature should be about 145 degrees and above for 15 seconds for the heat to sufficiently heat all parts of the specific meat or eggs.
True, we can cure things that we couldn't before. Even things like the common cold used to be deadly.
