<span>Hard Rock
mining works when a narrow horizontal vein orebody will be mined by room and
pillar or a longwall method whereas a vertical narrow vein orebody will be
mined by an open stoping or cut and fill method. However, there are further
consideration needed for the strength of the ore as well as the surrounding
rock. In addition an orebody hosted in strong self-supporting rock may be mined
by an open stoping method while an orebody hosted in poor rock may need to be
mined by a cut and fill method were the void is continuosly filled as the ore
is removed. </span>
Answer: A diver can cut through water in a swimming pool. The property observed in this phenomena is listed below. This shows that the particles of matter have spaces between them.
This shows that the particles of matter have spaces between them and the interparticle forces of attraction between liquid particles
Coffee....................
Answer:
C. political
Explanation:
A region is a place or territory that is on control by a particular person or organization.
A region that is administered by the United States government is an example of a political region.
This is because, a political region is a physical territory that is owned or controlled by the United States government, which makes it political and sovereign.