AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Such eroded, uncultivable land is called bad land (locally known as ravines in the Chambal basin). The process responsible is gully erosion, where running water cuts deep channels through clayey soil.
Source: Resources and Development, Soil Erosion and Soil Conservation
The textbook explicitly states both terms together: "The land becomes unfit for cultivation and is known as bad land. In the Chambal basin such lands are called ravines." The process is gully erosion. For a 1-mark question, naming the land type (bad land/ravines) and the process (gully erosion) is sufficient — both terms together secure full marks.