Multiple choice Residual hill in the desert region is known as? Pediment Playa Inselberg None of these Reveal answer Fill a bubble to check yourself C Correct answer Explanation An inselberg is an isolated, steep-sided residual hill or mountain rising abruptly from a plain, typically found in arid or semi-arid regions. Pediments are gently sloping rock surfaces at the foot of mountains, while playas are dry lake beds.