1. The moon illusion occurs when
A. you perceive the moon to be smaller on the horizon than overhead
B. you perceive the moon to be larger on the horizon than overhead
C. you perceive the moon to be the same size when viewed on the horizon and overhead
D. you think you see the moon when in fact it is not there
2. If you mix red, green, and blue paint, you will get
A. purple
B. white
C. orange
D. black
3. In general, as the cycle of sleep recurs through the night, it tneds to contain
A. more stage 4 and less REM
B. more stage 4 and more REM
C. less stage 4 and less REM
D. less stage 4 and more REM