Letter C is the correct answer.
A self-fulfilling prophecy is an unbased expectation (either positive or negative) of one person towards another person (or event) that leads this person to act or behave accordingly. In this case, a dyslexic person can read if he/she makes an extra effort to do so. However, his/her belief someone's false prophecy can lead him/her to become illiterate.
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
<span>Because they helped find new pathes and passes through the Indies.
Goal of manifest destiny refers to the popular idea that exist among American people in 1845, which viewed that America is destined by the God Himself to spread the value of Democracy and capitalism to the entire Northern America continent. The mountain men help the americans find a pathway to expand their influence to its northern region.</span>
Eardrums <span>vibrate as sound waves reach them. The vibrations are sent to the brain and and are translated as sound. Some might even say the ear is a transducer, or a device that translates on form of energy into another. </span>