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 sentence has two main clauses: one describing the CITES vote and the other describing the elephant population recovery. A comma is needed to separate these two independent clauses. The correct place to insert the comma is after "1989" to separate the two parts of the sentence.

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.