7'. Match each of the following types of causal relationships with the most appropriate example from the list below. [3K] a] cause-and-ettect relationship d] accidental relationship b] common-cause factor at reverse cause-and-effect relationship As the number of cell phones sold rises. the number of students involved in extracuntcular activities rises As the population of certain species of animals decreases. the amount of logging in wilderness areas Increases. As the amount of mum-vitamins sold rises. the number of people with colds decreases