Which statements are correct? (A) Denudation involves weathering, mass wasting and erosion. Choose the correct answer.
(B) Physical weathering and mechanical weathering are different processes distinguished only by scale.
(C) In dry climates, salt-crystal growth can help form hollows near the bases of sandstone cliffs.
(D) Exfoliation means the breakup of rock into individual mineral grains, rather than the peeling of sheets or layers.
(A) and (C) only
A and C are correct. Denudation includes processes that wear down the land, including weathering, mass movement and erosion. Salt crystallisation can disrupt porous sandstone. Physical and mechanical weathering are synonymous; exfoliation is sheet or layer detachment, whereas separation into grains is granular disintegration. Thermal stresses can contribute to exfoliation.
Important Questions from Geomorphology
Asthenosphere is:
The discontinuity present in earth's interior between lower mantle and outer core is called _________.
Which of the following igneous rocks contain silica in excess of 65%?
Which type of rocks are found in Lafagarh and Podi Uprora ?
Part of Gondwana land is
