In the US, the most common size is 8 in Ã 8 in Ã 16 in (20 cm Ã 20 cm Ã 41 cm); the actual size is usually about 3/8 in (1 cm) smaller to allow for mortar joints. Cinder blocks differ from concrete blocks in their aggregate content.
Geography of Seychelles. The Seychelles is a small island nation located in the Indian Ocean northeast of Madagascar and about 1,600 km (994 mi) east of Kenya. Seychelles lies between approximately 4ÂºS and 10ÂºS and 46ÂºE and 54ÂºE.
Located in the continent of Africa, Seychelles covers 455 square kilometers of land, making it the 203rd largest nation in terms of land area. Seychelles became an independent state in 1976, after gaining its sovereignty from The United Kingdom.