Change your cover photoUpload Change your cover photoUpload mrrrk69 This user account status is Approved About About Questions Questions Comments Comments New question New question Why can't we draw conclusions about the system itself from the properties within a system? 2 years ago in: Physics 4 comments Cannabis pizza possible? 2 years ago in: Drugs, addiction & prevention 11 comments (0 rating, 0 votes, rated)You need to be a registered member to rate this.Loading...