Author Question: In the cut-and-fill method, ____. A)benches are cut into a hillside B)material is removed from the ... (Read 13 times)

joesmith1212 · **on:** Jul 13, 2018

In the cut-and-fill method, ____.
A)benches are cut into a hillside
B)material is removed from the up a slope and placed at the base
C)retaining walls are constructed and anchored into bedrock
D)rock bolts are fastened to stable bedrock
E)material is removed from the base of a slope

Question 2

The chemical formula of calcium carbonate is CaCO3. The number three (3 ) in this formula represents the ratio of ____ in the mineral.
A)calcium atoms to carbon atoms
B)oxygen atoms to carbon atoms
C)carbonate atoms to oxygen atoms
D)oxygen electrons to oxygen atoms
E)carbon electron to oxygen atoms