 
 <prompt> Supernova dey needed to form wetin? Given di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Uranium na one element wey dey occur naturally and e fit dey find for low levels inside all rock, soil, and water. Uranium na di 51st element for abundance for Earth's crust. Uranium also na di highest-numbered element wey fit dey find naturally for significant quantities for Earth and e dey almost always dey find combined with other elements. Along with all elements wey get atomic weights wey pass iron own, e dey only naturally form for supernovae. The decay of uranium, thorium, and potassium-40 for Earth's mantle dey reason why heat dey come out wey dey keep the outer core liquid and dey drive mantle convection, wey in turn dey drive plate tectonics. 