The pacific island chain located nearest to australia is a. polynesia b. micronesia c. melanesia d. galapagos

The correct answer is C. Melanesia.

Melanesia is the closest of the three Pacific major chains of islands to the Australian mainland. It is very close to the coastline of Australia, and it is occupying the islands on the north and northeast of Australia, including Vanuatu, Papua New Guinea, Fiji, Solomon Islands, New Caledonia, some of which are pretty small islands, while other very big. In all of the islands of this island chain there's wet tropical climate and they are covered with tropical rainforests.