Heather's soccer coach believes she is not a good athlete and therefore yells at her constantly during practices. this makes her more likely to perform worse on the field. these behaviors demonstrate the concept of

This demonstrates the concept of the self fulfilling prophecy. It is when a person unintentionally causes a forecast to become accurate, due to the simple fact that he or she anticipates it to come true. In other words, anticipation about a subject, such as a person or event, can affect our performance towards that subject, which causes the expectation to be true.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.