Which phrase provides the best definition of mass movement?

Hi hope this helps

~ the movement of material caused by erosion

~the slow flow of a glacier as it moves through the valley of a mountain

~ the movement of large amounts of soil and rock debris down a slope

~ the fast movement of a boulder rolling down a slope

-The movement of large amounts of soil and rock debris down a slope-

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying