Answer:
B is my guess not positive though maybe wait for someone else to back me up on it
Using amphetamines to counteract the effects of depressants
Copper oxide is a compound :) hope this helps.
They need to have a q system perspective in order to work.
Know which noises can cause damage (those at or above 85 decibels). Wear earplugs or other protective devices when involved in a loud activity (activity-specific earplugs and earmuffs are available at hardware and sporting goods stores). If you can't reduce the noise or protect yourself from it, move away from it.
