What country is it? This country is situated on archipelago of more than 17 000 islands, including the third largest island in the world, between the Indian Ocean and the Pacific Ocean. The territory of this country contains the most volcanoes of any country in the world - some 76 are historically active.
My answer: I have no clue...
If you are having trouble with a question like this, try to find one fact that is given in the question that should be relatively easy to look up on the internet or in a book. In this case, the easiest fact to look up is the name of the largest islands in the world. You could then find out what the third largest island is and what country it is part of.
If you looked this up, you would find that Borneo is listed as the third largest island in the world. You would say that part of Borneo is in the country of Indonesia. You could then look up Indonesia to see if it fits the rest of the criteria listed in your question.
As it turns out, Indonesia does fit the rest of the criteria and is the correct answer. Indonesia does have more than 17,000 islands in its territory and its territory is in both the Indian and Pacific Oceans. It also is home to a large number of volcanoes as it is part of the “Ring of Fire.”
So, Indonesia is the correct answer to this question.