A reef than surrounds a volcanic island is an : Atoll
Atoll usually takes shapes in a form of ring that surround the areas of volcanic island that consist of corals. It usually only exist in warm waters, so volcanic islands will provide perfect environment for the corals
hope this helps<span />
<span>The answer is Ottawa, Canada.
Ottawa is the capital city of Canada and has a population of around 1 million people and is the fourth-largest city in Canada. The city has many of the functions and attractions that one would expect in a capital city - the country's parliament and many museums and educational establishments.</span>
Governments are responsible for providing services that individuals cannot effectively provide for themselves, such as military defense, fire and police departments, roads, education, social services, and environmental protection.
