The answer is B) <span>Wind is a natural source of energy; not man-made.</span>
If the manipulation of the independent variable causes a change in the dependent variable, covariance is established.
When I was in school my teacher always pays attention to my classmates who are sitting in front of the class because he thought they are the ones who are smart. We can all see this unfair treatment, especially to quizzes and recitations.
What I did is I didn't care about the teacher at all and topped all my exams. I have the freedom to sit wherever I want and I don't care about the grades. But I aced the tests he gave. My lesson is the more you don't care about people you can't give you anything good. The more you'll be happy. Just stick to your goals
The differences between generations is fluid, as babies are born every day, but some generations do in fact get a name.
The generation born to the young adults of the time of WW2 was called "baby boomers" - babies born after the souldiers came home from the war.
