Continent Europe and Asia together as a single continent, dubbed "Eurasia". In this model, the world is divided into six continents, with North America and South America considered separate continents. Geologists use the term "continent" in a different manner from geographers. In geology a continent is defined by continental crust: a platform of metamorphic and igneous rock, largely of granitic composition. Some geologists restrict the term 'continent' to portions of the crust built around stable Precambrian "shield", typically 1.5 to 3.8 billion years old, called a craton. The craton itself is an accretionary complex of ancient mobile belts (mountain belts) from
Heaven Is a Place on Earth Earth" reached number one in many other countries, among them Switzerland, Ireland, Sweden, South Africa and Norway. The single also reached number three in Germany and Canada, number two in Australia, and number six in Italy. It is widely considered to be Carlisle's signature song because of its success on the charts and its continued relevance today. "Heaven is a Place on Earth" was nominated for the Grammy Award for Best Female Pop Vocal Performance. It lost to Whitney Houston's "I Wanna Dance with Somebody (Who Loves Me)". In 2017, ShortList's Dave Fawbert listed the song as containing "one of