How many of these islands are still forming?

“Set 1000 kilometres off the coast of Ecuador on a three-way tectonic plate junction, the Galapagos Islands are made up of 13 major islands, 6 minor islands and 40 islets in the Pacific Ocean, which are the result of numerous volcanic eruptions – including 13 in the last 100 years.”

Pay attention in class and you would know

I'm fluent. i'm from mexico. : )