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There are six categories from EF0 to EF5.
If you mean "weight categories" there are 17.
There are 22 Main Categories on WikiAnswers.
There are over 11,000 categories on Answers.com.
There are 4 (four) syllables in the word categories.
Categories for the Working Mathematician has 262 pages.
3
four?
69
This is not really a question. There are many different categories of science. Just like there are many different aspects of the periodic table.
There are many diagnostic categories of deep organ candidiasis, depending on the tissues involved.
There are more than 8,600 categories and subcategories - and rising every day.