Which of the modern technology has professional swimmers improve their racing performance? a) flippers for protection b)swimsuits for permitting drag c) earpieces for listening to coaches d)mouthpieces for breathing

Wheeled coach ambulance uses an interactive computer program to develop and document its products. what is it called?

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs

The consists of a mixture of gases and particles, including oxygen, nitrogen, hydrogen, carbon dioxide, water vapor, and dust.