PLEASE HELP DO NOT WASTE ANSWERS URGENT WILL MARK BRAINLIEST

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

In a study, people were asked to imagine simple occasions that made them happy and to remember events that made them feel proud about themselves. it was observed that the subjects developed an increasingly positive attitude. these changes are known to be healthy, leading to greater physical activity and reducing unhealthy habits. based on this excerpt, we can conclude that a positive attitude .

4. write short introduction to aaran and jaanto technology.