<span>c. an aging population that the government must support</span>
Pangea is the name of the giant landmass that once contained all of the continents.
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The answers are:
- is found on the surface
- is a dark lava rock
- has more aluminum than magnesium
- is found as prominent buttes
Basalt is an igneous rock that forms with fast cooling on the surface.
Basalt is a dark fine-grained volcanic rock.
Aluminum can be up to 17% of the composition of the basalt, while magnesium up to 15%.
Basalt is found as buttes where lava flows from the volcanoes were intense.