Question

The processes by which Scree deposits are formed are ________

(a) Chemical attack

(b) Exposure to sunlight

(c) Water movement

(d) Heaving and rolling

The question was asked in an internship interview.

Asked question is from Geological Work of Atmosphere in chapter Geological Work of Natural Resources of Engineering Geology

Answer 1

The correct choice is (d) Heaving and rolling

Easiest explanation: If the original surface forms a significant slope, as is commonly the case in the hilly and mountainous regions, the frost fragments get heaved up from the crevices and cavities and then roll down the slope under the influence of gravity. Finally, the fragments accumulate at the base as heaps commonly called as Scree deposits.