psychology class please if you do not know do not tell you know and give me wrong answer

Here is the question it's 3 question I do not want a long answer try to keep it as short as you can but make sure it's answer the question at the same time 

1 Suppose that you wanted to demonstrate exercise cause better health. What would you have to meet the three criteria for determining causality? List the 3 criteria  

2 Summarize the relationship between satisfaction with life and romantic partners in the past year  depicted in #8 indicate both variables in your answer and the direction relationship if any 

3  

When you applied to the university  you probably had to give  your high school GPA because high school is strongly positively correlation with college GPA clearly whether a significant positive correlation between your high school  GPA and your college GPA would be predictive or causal relationship. Explain your answer