X=7(640) // X being the number of muffins made in a week, 7 being the number of days in a week, and 640 being the number of muffins made each day.
Answer:
C. experimental
Explanation:
Experimental variables are the variables that are changed during the experiments to observe the effects of these changes. An experiment usually has one or more experimental variables. An experimental variable that is changed to know its impact on some other variable is called the independent variable.
In the given experiment, goldfishes were exposed to various temperature conditions to observe the effect of temperature on respiration. Therefore, both temperature and respiration rate are the experimental variables here.
Hot spots, Divergent plate boundaries and Convergent plate boundaries
I think marine, but I’m not so sure
