What does the mechanic say Ralphie needs to know before building a
robot?

Which of the following can refer to the form of exercises that uses free weights, weight machines. resistance bands, or the weight of the body to put stress on the muscles ? (a) strength training(b)weight training(c)resistance training(d) all the above

Which of the following is a health risk associated with ground-level ozone? a.cataractsb.skin cancerc.respiratory illnessd.all of the above

Which of the following is also referred to as "swayback"? a. kyphosis b. scoliosis c. lordosis d. none of the above