In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Answer: Incorrect.
Explanation: The board exam is the final and one of the most important exams to take. You go before a desk of people- the board - and proceed to go through the last phase of testing.
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The first thing you'd have to do is see experts/professionals. If not, you'd have to search up your symptoms of your disease on trusted sources.
