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Original Fujita scale developed in 1951. Recategorized in 2007, as follows:
Enhanced Fujita Scale:
EF-065-85mph
EF-1 86-110mph
EF-2 111-135mph
EF-3 136-165mph
EF-4 166-200
EF-5 >200 mph
The answer will depend on what aspects of what shapes AD, DE and EF are.
i have a ef&ef green lamp #502. how much is it worth
Jai ho!
ef ef ef
No. No element has the symbol Ef.