Lead pollution in and around the Aegean Sea dates back to the Bronze Age and shows a strong spike associated with Roman ...
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Long after tectonic plate movement has created mountains, forces such as weather and river erosion can continue to shape a landscape. One such landscape is the Colorado Plateau, which spans more ...
Most observers of tropical convection will be familiar with congestus clouds, so named because their piling up is made visible as they terminate their development in the mid-troposphere.
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