Ill give brainliest! 1. Which item below describes a quick change to Earth's landscape?
A. a stone becoming smooth
B. dirt moving down a steep hill
C. flat land becoming a canyon
D. a glacier flattening the land below it​

Ahole in the ground in the shape of an inverted cone is 14 meters deep and has radius at the top of 11 meters. the cone is filled to the top with sawdust. the density of the sawdust depends upon the depth, x, following the formula ρ ( x ) = 2.5 + 1.2 e − 0.7 x kg/m3. find the total mass of sawdust in the conical hole.