Question : How has the pattern of the iron and steel industry changed in recent years?
Option 1: Decrease in demand for steel
Option 2: Shift towards using renewable energy sources
Option 3: Increased use of recycled materials
Option 4: Reduction in global production
Correct Answer: Increased use of recycled materials
Solution : The pattern of the iron and steel industry has changed with an increased use of recycled materials, as part of efforts to reduce environmental impact and improve sustainability.