Limestone is made from the ____ remains of skeletons of sea creatures, laid down in ____ layers on the sea bed (called bedding planes). Sedimentary rocks were then uplifted by plate ____ The overlying rock was removed by ____ in the form of abrasion. Acid rain (a weak ____) reacts with the limestone as it passes through the ____ rock (carbonation). The dissolved rock is carried away by running ____ (solution). Continued chemical weathering widens and deepens cracks to form gaps called ____. Rectangular blocks of limestone called ____ are separated by the grykes. The resulting pattern of block-like rock is a ____ pavement. An example is Malham Cove in the Yorkshire Dales.

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