Lung cancer, respitory problems, digestive problems, and other cancers.
Answer:
Over Confident because they think they are better and smarter than others.
Explanation:
The correct answer is A. Causal relationship
Explanation:
In research, it is common to use either quantitative methods that measure a phenomenon through numbers and statistics or qualitative methods that describe a phenomenon through qualities and characteristics. Both of this methods are used by researchers to understand an event, issue, situation, tendency or problem(phenomenon) and explaining it, especially by identifying the elements that are related to the phenomenon and whether these are the cause of the main phenomena, whch is knonw as causeal relationship. Thus, these methods attempt to establish a Causal relatioship.
Brain stem :) It controls all the things like breathing, heartbeat, body temp, blood pressure and alertness ^_^
