have greater amounts of alkali metals in their lavas
22. It can be inferred from the passage that evidence for the apparent course of the Pacific plate has been provided by the
contours of the continents
dimensions of ocean hot spots
concurrent movement of two hot spots
pattern of fissures in the ocean floor
configurations of several mid-ocean island chains
23. It can be inferred from the passage that the spreading out of lavas of different ages at hot spots indicates that a
hot spot is active
continental plate has moved
continental rupture is imminent
hot spot had been moving very rapidly
volcano contains large concentrations of alkali metals
24. The passage suggests which of the following about the Hawaiian Islands, the Austral Ridge, and the Tuamotu Ridge?
The three chains of islands are moving eastward.
All the islands in the three chains have stopped moving.
The three island chains are a result of the same plate movement.
The Hawaiian Islands are receding from the other two island chains at a relatively rapid rate.
The Austral Ridge and the Tuamotu Ridge chains have moved closer together whereas the Hawaiian Islands have remained stationary.
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