Dissolution is not a common sample preparation technique used in geomorphology. Sieving, thin sectioning, and polishing are all commonly used to prepare samples for analysis.

Thin sectioning is used to create a two-dimensional representation of a rock sample, which can then be studied under a microscope to identify the minerals and textures present.

Radiocarbon dating is not a common data analysis technique used in geomorphology. Grain size analysis, X-ray diffraction, and scanning electron microscopy are all commonly used to analyze geomorphic samples.

Grain size analysis is used to determine the texture of a sediment sample, which can provide information about the depositional environment and the transport history of the sediment.

The vegetation of a region is not a common interpretation of geomorphic data. The age of a landform, the climate of a region, and the tectonic history of an area are all common interpretations of geomorphic data.