In general, laboratory experiments with mice prove that cataracts may be induced with doses of ionizing radiation as low as

When are steam turbines a feasible option?

A. When water supply is limited B. When an energy source is not available C. When electric driver motors are unavailable D. When an uninterruptible supply of steam is available

Parents or guardians who are behaving ethically will

a. argue with the coach about training routines. b. support all the participants in an athletic contest. c. teach their children that winning is the most important goal. d. help distract athletes on the opposing team during competition.