<span>Copper and zinc are elements, not mixtures. Bronze is an alloy of texture of copper and tin, not a mixture. The answer would be (C.)Sand.
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<span>Sunni Ali is these is MOST associated with the Songhai Empire. Sonni Ali established Gao as the capital of the empire, although a Songhai state had existed in and around Gao since the 11th century. Other important cities in the empire were Timbuktu and Djenné, conquered in 1468 and 1475 respectively, where urban-centered trade flourished. Initially, the empire was ruled by the Sonni dynasty (c. 1464–1493), but it was later replaced by the Askiya dynasty (1493–1591).</span>
Tectonic plates are parts (pieces) of the outermost layer of Earth: the Crust. (the outermost part of the mantle is also often included in the plates). This means that the land in the middle of the plates is relatively stable while the borders of the plates can be in movement - after all this is where two pieces meet. Plate borders are where the vocanoes and Earthquakes often take place.
Londoners are younger than anyone in the UK, London is more ethnically diverse than anyone in the UK, In London people are more educated (58%vs 38% graduates in working age population), In London people earn more money than the rest of the UK, London regards itself as innately naturally superior than anyone else despite having more in the way of things like violent crime than the rest of the country.