Because Sand Grains Are Heavier Than Clay and Silt Particles

Q28: Desert stream channels called _ are characterized

Q29: In passing over a dune, wind scours

Q30: The steep downwind face of a sand

Q31: Some of the world's deserts are the

Q32: The removal of clay, silt, and sand

Q34: Thin rocky soil and slow rates of

Q35: The high runoff following sporadic desert downpours

Q36: A pediment is an erosional surface underlain

Q37: _ dunes in the Sahara are as

Q38: Because sand-sized grains are heavier than silt