Which of the following is an environmental threat and a natural process that to shape the caribbean?
a. hurricanes
c. tornados
b. typhoons
d. volcanoes

D. Volcanoes

Explanation:

There are essentially two types of islands in the Caribbean. The older group -- Aruba, Bonaire, Curaçao, Guadeloupe's Grand Terre, Antigua, Barbuda, St. Martin and Anguilla -- are largely low-lying plateaus composed of billions of shells and marine animal skeletons accumulated on the ocean floor. The younger islands which were formed by an arc of underwater volcanoes at the points of convergence between the Atlantic and Caribbean tectonic plates -- surfaced relatively recently, and include Grenada, St. Vincent, St. Lucia, Martinique, Dominica, Guadeloupe's Basse Terre, Montserrat, Saba, Statia, Nevis and St. Kitts.

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).