Answer:
4
Explanation:
Starts with a compound and breaks down.
- Hope that helped! Please let me know if you need a further explanation.
546hm = 54600m
643hg=64,300,000mg
2km=78740.2in
18lb=8.16466kg
1) The longer the quarrying goes on the less and less recources we will have, soon leading to no more recources