1. Production of metal from mineral ores is a primary industry. |
2. Pulping of logs to make paper is a primary industry. |
3. Manufacturing of heavy machines is a secondary industry. |
4. The iron and steel industry is the basic to all industries. |
A) 1, 2 and 3 are correct
B) 1, 2 and 4 are correct
C) 1, 3 and 4 are correct
D) 1, 2, 3 and 4 are correct
Correct Answer: D
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