The absolute number of molecules of drug required to elicit a response
Answer:
I would believe the mesosphere would be the most difficult layer to breathe. Troposphere is where we are, ov we can breathe here, stratosphere would be hard to breath in as well
I don't think so, because for every action there is an equal and opposite reaction.
Hope this helps! :)
Carl Linnaeus wrote it in 1735 originally in Latin language
