International Relations Prelims Question

Landscape evolution in the deserts is primarily concerned with the formation and extension of the pediments. Gently inclined rocky floors, close to the mountains at their foot, with or without a thin cover of debris are called pediments.
Such rocky floors form through the erosion of mountain front, through a combination of lateral erosion by streams and sheet flooding.
Erosion starts along the steep margins of the landmass or the steep sides of the tectonically controlled steep incision features over the landmass.
Once, pediments are formed with a steep wash slope, followed by cliff or free face above it, the steep wash slope and free face retreat backwards.
This method of erosion is termed as parallel retreat of slopes through back wasting. So, through parallel retreat of slopes, the pediments extend backwards at the expense of the mountain front and gradually, the mountain gets reduced, leaving an inselberg, which is a remnant of the mountain.
That is how the high relief in desert areas is reduced to low featureless plains, called Pedi plains.

Landscape evolution in the deserts is primarily concerned with the formation and extension of the pediments. Gently inclined rocky floors, close to the mountains at their foot, with or without a thin cover of debris are called pediments.
Such rocky floors form through the erosion of mountain front, through a combination of lateral erosion by streams and sheet flooding.
Erosion starts along the steep margins of the landmass or the steep sides of the tectonically controlled steep incision features over the landmass.
Once, pediments are formed with a steep wash slope, followed by cliff or free face above it, the steep wash slope and free face retreat backwards.
This method of erosion is termed as parallel retreat of slopes through back wasting. So, through parallel retreat of slopes, the pediments extend backwards at the expense of the mountain front and gradually, the mountain gets reduced, leaving an inselberg, which is a remnant of the mountain.
That is how the high relief in desert areas is reduced to low featureless plains, called Pedi plains.

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