A person who enjoys accomplishing tasks very competently is high in

When pregnant mothers suffer diseases or are exposed to harmful toxins, their children sometimes develop problems later in life. One of these risks, whose reduction may help prevent schizophrenia, is

a. a virus b. cigarette smoke c. automobile exhaust d. alcohol e. measles

At the highest level of athletic competition (such as the mile run), amphetamines are probably not beneficial as performance enhancers because they only improve performance by 1%

Indicate whether the statement is true or false