American International School of Abuja and swimming), a very active student council and service-learning clubs. Students in athletics have the opportunity to compete in the West African International Schools Activities League where they enjoy travel opportunities to compete with other participating schools in the West African Region. American International School of Abuja American International School of Abuja (AISA) is a coeducational international day school in Abuja, Nigeria serving grades Pre-School through Grade 12. The school year runs from August to June, with 180 student contact days. At the end of the 2015-2016 school year, the student population was 470 spanning from over 40 countries. The
Geology of the Central African Republic Southern Hemisphere as part of the supercontinents Gondwana and Pangaea. Many aspects of Central African Republic’s geologic history remain unknown. Along with the Brazilian state of Bahia, CAR is the only country known to host carbonados (black diamond aggregates), which some researchers have suggested may be connected to a Precambrian meteorite impact that could also have generated the Bangui magnetic anomaly. Up to 60% of bedrock beneath the Central African Republic dates to the Precambrian. Much of the country is situated in the Archean Congo Craton. The North Equatorial Fold Belt, Pan-African granulites and greenstone belts are found in the