Use the drop-down menu to complete each statement. One of einstein's major contributions to the study of physics was his theory of. Einstein's theories argued that the knowledge acquired through was not always accurate. In introducing his theories involving , freud tried to explain human behavior and emotion.

Mount saint helen the great lakes and death valley are physical features of the earth which scientific term describes these features

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.

In a cooking context,which of the following materials is the best heat conducter?