A teacher treats you as though you are an idiot because of an older sibling. You start performing poorly even though you are a good student and are quite bright. What concept
does this illustrate?

Animations and transitions are added from the

What statement is true about all chemical changes? a) chemical changes can be undone. b) chemical changes cannot be reversed. c) chemical changes change the color of objects. eliminate d) chemical changes do not form new products.

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor