Which one among the following is not a coral reef island?
[amp_mcq option1=”Great Barrier Reef, Australia” option2=”Rainbow Reef, Fiji” option3=”Swaraj Island, India” option4=”Kyushu Island, Japan” correct=”option4″]
This question was previously asked in
UPSC CDS-2 – 2020
Kyushu Island, Japan, is not a coral reef island. It is one of the four main islands of Japan, primarily formed through volcanic and continental processes.
Coral reef islands are formed from the accumulation of coral skeletal remains and other organic materials over geological time. Examples include atolls and cays.