A. Tornado
A rotating, funnel-sgaped column of wind moving at speeds between 110 and 200 miles per hour
B. Hurricane
An intense storm that begins over tropical waters and includes heavy rain and strong winds.
Answer:
d. method of studying
Explanation:
independent variables are what affects the dependent variable. the outcome that you are looking for (test performance) is the dependent variable. what affects the test performance is the change in method of studying, so that is the independent variable.
The correct answer is letter B. Hallucinations. Someone who suffers form nacrolepsy may experience hallucinations and sudden sleep attacks. Sometimes, insomnia and sleep paralysis are the effects of this neurological disorder. It affects brain's sleeping activity and cycle.