Question

In the 1970s, the island of Nauru had one of the highest per capita incomes in the Oceania region due
to extensive _______ mining.
A. copper
End of exam
B. phosphate
C. nickel
D. gold

Answer 1

B this is the right answer
hope this help you out

Answer 2

In the 1970s, the island of Nauru had one of the highest per capita incomes in the Oceania region due to extensive B. Phosphate mining.