<span>B. Aggregate. Stone, gravel, and other bits of crushed rock are known as the 'aggregate' in Earth Science, as they are made up of the aggregation of extraneous bits of stone. They are a nonrenewable resource which we rarely think about, but which is utilized for a number of different industries and day-to-activities. It can be man made as well as naturally occurring.</span>
He served as king for the Mali Empire
Tectonic Plates<span>, Earthquakes, and </span>Volcanoes<span>. According to the theory of </span>plate tectonics, Earth is an active planet. Its surface is composed of many individualplates<span> that move and interact, constantly changing and reshaping Earth's outer layer.</span>Volcanoes<span> and earthquakes both result from the </span>movement<span> of </span>tectonic plates<span>.</span>
When is reaches the outside of the volcano
