How do hot spots, which are not explained by plate tectonics, help to confirm that lithospheric plates are moving?

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These regions of intense volcanic activity seem to be located where mantle rises upward from beneath the lithosphere. Movement of lithospheric plates across these areas of rising mantle leaves behind tracks on the plate. As the plate moves over the hot spot, an active volcano forms. As the lithosphere passes, the volcano moves off of the hot spot and becomes extinct while a new volcano forms above at the hot-spot location.

Environmental & Atmospheric Sciences

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The Antarctic circulation is dominated by what single large current?

a) The Antarctic surface water current b) The Antarctic circumpolar current (West Wind Drift) c) East Wind Drift d) Antarctic Bottom Water e) North Atlantic Deep Water

Environmental & Atmospheric Sciences

The Euro is a common currency

A) between all nations of Europe. B) between all member nations of the European Union. C) in 19 EU member states and 6 non-member states. D) is 6 member states and 19 non-member states. E) has been retired with the economic challenges in Spain and Greece.

Environmental & Atmospheric Sciences

Solvents, pesticides, PCBs, and dioxins would be categorized as which type of hazardous waste?

A. toxic heavy metals B. radioactive compounds C. organic compounds D. mining waste E. medical waste

Environmental & Atmospheric Sciences

Mount St. Helens and the related Cascade Range volcanoes represent the only volcanically active areas in the United States.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences