Https://www.cargomaster.com.au/wp-content/uploads/2012/08/img_slider_05-564x350.jpgReduced islands During this area are often composed of coral and minimal in elevation. Significant islands tend to be volcanic in origin and mountainous with substantial elevations. Micronesia consists largely of minimal islands, although Polynesia consists of many higher islands, including Hawaii. Tuva... http://Conservablogs.com