| Direction: Given below is a pair of events. I and II. You have to decide their nature of relationship. Assume that the given information is correct and final. |
| I. For the production of aluminium, cheap electricity is essential. |
| II. Extraction of aluminium from its ore requires abundant supply of electricity. |
A) I is the main cause and II is the main effect
B) I is effect but II is not the main cause
C) II is the main cause and I is the main effect
D) II is an effect but I is not the main cause
Correct Answer: C
Solution :
Electricity is needed for electrolytic refining of bauxite ore of aluminium.
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