Answer:
11. T - In a tornado warning, a tornado may form because the conditions are favorable
12. T - Most Tornadoes occur in the GReat Plains area of the U.S
13. F - Tornadoes can range from 50 yards to 100 miles
14. F - Techniclhly, the F5 tornado is the strongest
15. F - Tornadoes in the northern hemisphere rotate counterclockwise, and in the Southern Hemisphere they rotate clockwise.
16. T - This is true.
17. F - A funnel cloud that touches the ground becomes a tornado
18. T - Many states are a part of Tornado Alley
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