Examlex
Given the following data for the reaction: A(g)+ 2B(s)
AB2(g) Is the reaction endothermic or exothermic?
Continental Drift
The concept of the movement of continents and other landmasses across the surface of the Earth.
Oceanic Crust
The relatively thin part of the Earth's crust that underlies the ocean basins, composed mainly of basaltic rock.
Land Bridges
Natural connections between separate landmasses, allowing animals and humans to migrate from one area to another.
Frozen Earth
Describes periods in Earth's history when ice sheets and glaciers covered significant portions of the planet's surface.
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