Question

find the relative clause. if it is nonrestrictive, set it off with commas. if it is restrictive, submit the text without making any changes.
1
during his tour of the organic chocolate factory, jim learned about the theobroma cacao which is a cacao tree native to the rain forests of central america.

Explanation:

The relative clause "which is a cacao tree native to the rain forests of Central America" provides extra, non-essential information about Theobroma cacao (the term itself is a specific scientific name, so the clause doesn't restrict its identity). Nonrestrictive relative clauses are set off with commas.

Answer:

During his tour of the organic chocolate factory, Jim learned about the Theobroma cacao, which is a cacao tree native to the rain forests of Central America.