The open-cast mining is the easiest and the ____ way of mining minerals.
(a) Useless
(b) Expensive
(c) Cheapest
(d) Hardest
Answers
Answered by
1
Answer:
cheapest।
please mark me as brainliest
Answered by
0
Answer:
(c) Cheapest
Explanation:
hope you satisfied with this answer!!
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