Which is an example of refraction? A. a flashlight beam hitting a mirror
B. a shout crossing a crowded room
C. a sunbeam striking a window
D. a water wave bending around a rock

Sociologists found that the effects of institutionalization on infants, i.e. lack of a caring environment, will result in slower development of their mental, physical, and emotional skills. true or false? ?

The seven weeks’ war between austria and prussia italy add the province of to the kingdom of italy.

The signing of which document ended the american revolutionary war? a. u.s. constitution b. declaration of independence c. treaty of paris d. treaty of versailles