“formed of” or “formed by”, which one is appropriate?

“formed of” or “formed by”, which one is appropriate?

1 Answer

  1. “Formed of” is used when there is a distinction of ingredients. For example, a cake is formed of flour, sugar, and butter. “Formed by” is used when there is a person or thing that is responsible for something. For example, the country was formed by the colonies.

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