The island country of Cape Verde consists of how many volcanic islands?

Cape Verde or Cabo Verde, officially the Republic of Cabo Verde, is an island country and archipelagic state of West Africa in the central Atlantic Ocean, consisting of ten volcanic islands with a combined land area of about 4,033 square kilometres (1,557 sq mi). These islands lie between 600 and 850 kilometres (320 and 460 nautical miles) west of Cap-Vert, the westernmost point of continental Africa. The Cape Verde islands form part of the Macaronesia ecoregion, along with the Azores, the Canary Islands, Madeira and the Savage Isles.

The Cape Verde archipelago was uninhabited until the 15th century, when Portuguese explorers discovered and colonized the islands, thus establishing the first European settlement in the tropics. Because the Cape Verde islands were conveniently located to play a role in the Atlantic slave trade, Cape Verde became economically prosperous during the 16th and 17th centuries, attracting merchants, privateers, and pirates.