Answer: Migraine
Explanation:
Migraine is a powerful headache that leads to nausea, sensitivity to light and vomiting. It can lasts for 3 to 4 days and sometimes longer.
Most of the people suffering from migraine is 10 to 40 years of age. The headache in this case is extreme.
The person feels sensitivity towards light and does not feels good with any type of smell and light.
B. the water is the salute.
In the experiment, the dependent variable is the pulse rate of the participants, which is expected to change based on the intake of caffeinated or caffeine-free soda.
In this experiment, the dependent variable is the pulse rate of the participants. This is what the researchers are measuring and observing, and it is expected to change in reaction to the manipulated variables (or independent variables).
In this case, the independent variable is the type of soda consumed: caffeinated and caffeine-free. The hypothesis being tested is that the intake of caffeine (via soda) leads to a higher pulse rate. Therefore, the pulse rate 'depends' on whether or not the soda consumed contained caffeine.
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