Silicate and nonsilicate.
The two main mineral groups are silicates and non-silicates. Silicates further divide into subclasses such as tectosilicates, inosilicates, sorosilicates, and cyclosilicates. Non-silicates include groups like carbonates, sulfides, oxides, and halides, among others.
The two main groups of carbohydrates are starch and sugars.
Silicate and nonsilicate
it is two main groups
Silicates, Carbonates, and Oxides
metals and non-metals
it is two main groups
Representation and education are the two main functions of interest groups.
The two main groups of Islam are the Shia and Sunni. They divided into these groups after Mohamed died and they could not decide on just one successor.
Metallic and non-metallic.
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