Which Major Islands and Minerals of the World term is correctly associated with location or primary association: “a sheet silicate mineral group”, and also with “valued as an electrical and thermal insulator”?

Correct Answer: Option C — Mica. Mica is correct because it is a sheet silicate mineral group. Mica is also associated with valued as an electrical and thermal insulator. A further identifying fact is that Mica is a sheet silicate mineral group. Another useful fact is that Mica is associated with valued as an electrical and thermal insulator. Why the other options are incorrect: Option A — Greenland: It is located between the Arctic and North Atlantic oceans and is associated with the world's largest island that is not a continent; those are the identifying facts of Greenland. Option B — New Guinea: It is located north of Australia in the western Pacific and is associated with politically divided between Indonesia and Papua New Guinea; those are the identifying facts of New Guinea. Option D — Borneo: It is located in Southeast Asia and is associated with shared by Indonesia, Malaysia and Brunei; those are the identifying facts of Borneo. Exam Takeaway: Link Mica with “a sheet silicate mineral group” and “valued as an electrical and thermal insulator” for quick revision.