Answer:
cut-off grade of the copper deposit. = 4.6 kg/ton 0r .46 % cu by weight
Explanation:
Given data:
percentage of deposite copper is 0.80%
selling price of cu is $1.73/kg
overall unit cost = $6.5/ton
overall recovery 82%
= 11.3 $/ton
unit profit = (gross value - unit costs)
= (11.3 - 6.5)
=4.84 $/ton
cut off grade of copper deposit
= 4.6 kg/ton 0r .46 % cu by weight
Answer:
They exist in circle called the ring of fire....mostly around the asian region
Explanation:
Acid rain damages the protective waxy coating of leaves and allows acids to diffuse into them, which interrupts the evaporation of water and gas exchange so that the plant can no longer breathe
It is true that a <span>seismograph is used to map faults, monitor fault changes and predict earthquakes. A seismograph is the instrument which is vital for monitoring such changes, because it can help predict possible earthquakes, and thus the people who use it can warn the inhabitants to either move until the earthquake is over, or just be aware that it is going to happen. </span>