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The cones of the Table Mountain pine only open when exposed to intense heat. This is an example of

The class of landforms formed by the accumulation of glacial till are known as

In the mid-1800s Charles Darwin introduced the theory of _________ to explain how a new species could evolve from an earlier species with different characteristics.

The zone of seasonally frozen ground that exists between the subsurface permafrost layer and the ground surface is called the

Tides are produced by __________.

________ occur when high winds and water during tropical storms push sea water above the expected tideline.

____________ form when glacial plucking and abrasion erodes stream-cut valleys.

At the winter solstice, locations north of the Arctic Circle experience _____________.

The largest percent of total evaporation takes place over __________.

Estimates of future sea level rise are mostly due to