Question

which of the following is true about tornadoes?
a they only occur in the summer and fall.

b they are measured by the saffir - simpson scale.

c they are measured by the fujita scale.

d they cannot occur during the winter.

Explanation:

• Option A: Tornadoes can occur in other seasons too, not just summer and fall. Eliminate A.
• Option B: The Saffir - Simpson Scale measures hurricanes, not tornadoes. Eliminate B.
• Option C: Tornadoes are measured by the Fujita Scale (now Enhanced Fujita Scale) to assess their intensity. This is correct.
• Option D: Tornadoes can occur in winter, though less frequently. Eliminate D.

Answer:

C. They are measured by the Fujita Scale.