A cross-section sketch in geography fieldwork is:

• A. A map of the whole study area
• B. A vertical profile of a landscape or land use along a line
• C. A time-series chart
• D. A graph of rainfall over months

Answer: (B)

A cross-section sketch is a vertical profile of the landscape or land use along a line. It’s like taking a slice and looking from the side, so the horizontal axis shows distance along the line and the vertical axis shows height or depth. This lets you see how relief changes—where hills rise and valleys fall—and how land use varies along the transect, which helps you interpret processes like erosion, deposition, or drainage. It’s different from a full map, which is a plan view of the area, and from graphs that show change over time or rainfall data.