Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Q: Question: The length of a rectangular surface multiplied by its width is equal to what? Answer: area

A: The area of a rectangular surface is calculated as its length multiplied by its width.
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Q: Question: The movement of bone away from the midline of the body is called what? Answer: extension

A: The movement of bone away from the midline of the body is called ________. circumduction b. extension c. adduction d. abduction.
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Q: Question: How do they classify tornadoes? Answer: wind speed

A:
The winds of a tornado can reach very high speeds. The faster the winds blow, the greater the damage they cause. Wind speed and damage are used to classify tornadoes ( Table below ).
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