1. True- because scientific theory means that <span>idea supported through research that attempts to explain existing observations or predict new ones.</span>2. False- because a cross-sectional means that its a study that is about different groups.
3. B-<span>An extraneous variable clarifies the relationship between the independent and dependent variables.</span>
Please leave a comment with the choices and I will answer your question. If not I would start with a sun burn as the least and cancer as the most serious.
False, that would be very rude to your partner.