Question

correct the text by inserting one comma.
after the convention on international trade in endangered species cites voted to ban the trade of ivory in 1989 elephant populations slowly began to recover.

Explanation:

The text needs a comma after "Endangered Species" to separate the name of the convention (CITES) from the rest of the sentence. This is a basic punctuation rule in English grammar for clarity in complex noun - phrase structures.

Answer:

After the Convention on International Trade in Endangered Species, CITES voted to ban the trade of ivory in 1989 elephant populations slowly began to recover.