The normal age change called _____ progresses into heart disease.

The proportion of adolescents who drop out of high school has gone down over the last 30 years, with the steepest decline among _____ students

A) White B) Black C) Hispanic D) Asian

When Celia tried to make use of old cans of paint by mixing them, she had expected to end up with a dramatic and bold hybrid color but instead the mixture became darker and darker in color. The colors were lost because mixing paints results in ___

a. wavelengths that are reflected but distorted to wavelengths outside the visual spectrum b. more wavelengths being absorbed by the pigment molecules c. more light being reflected from the mixture d. subtractive effects