â The presence of marijuana is detected by a drug test through the presence of the active chemical THC or Tetrahydrocannabinol. Technically, what is detected is known as THC-COOH (11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid).
1 Average Riding Instructor Salary: Independent riding instructors typically charge an hourly rate for services but on average earn about $35,000 to $39,000 per year.
Most ski instructors start out receiving $8/hour for teaching skiing. However, depending on your level and expertise, you can receive between $10-$15 per hour. Advanced instructors can make around $25.Clinic instructors and private instructors can make much more.Salary also depends on the instructor's level of Professional Ski Instructors of America (PSIA) certification.owever, depending on your level and expertise, you can receive between $10-$15 per hour. Advanced instructors can make around $25. Clinic instructors and private instructors can make much more. Salary also depends on the instructor's level of Professional Ski Instructors of America (PSIA) certification.