Which type of mass movement makes a pattern of wrinkles, or terraces, on hillsides ? landside mudflow soil creep rock slide

soil creep

The mass movement or mass wasting is a natural process by which the soil particles, boulders and slopes moves down the hill or mountain.

Soil creep is the slow downhill progression of rock and soil. It is characterized by the slow deformation of the materials on the slope due to exertion of prolonged pressure and stress. It forms characteristic patterns such as wrinkles, terraces on the hill slides.

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.