The element of love that describes one's willingness to stay with the partner is known as

A member of a rock band has become concerned with whether his band's music is contributing to deafness among members of the audience. The factor he should be most concerned with is ________ to which the audience is exposed

a. the frequency of sine waves b. the pitch of the music c. the number of decibels d. whether harmonics are present in the music

When she first started taking drugs, a person suffering from an addiction found that they markedly affected her perceptions. Now, however, she finds that greater dosages are required to achieve the same effects. The addict is experiencing

a. withdrawal symptoms. b. psychological dependence. c. tolerance. d. intolerance.