Question detail
Which of the following actions would most effectively reduce the amount of iron extracted from ore in a steel plant?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Life cycle assessment and recycling
Question
- A. Using more efficient blast furnaces
- B. Adding scrap steel to the iron feed
- C. Increasing the use of aluminium in alloying
- D. Reducing the amount of coal used in the process
Answer
Adding scrap steel to the iron feed
Explanation
Adding scrap steel to the iron feed reduces the need for fresh iron extracted from ore, thereby conserving a limited resource.
Common mistake
Misunderstanding Evaluation Criteria
Students often confuse evaluating ways to reduce resource use with simply listing methods without assessing their effectiveness.
Focus on comparing the advantages and disadvantages of each method, using specific data or examples to support your evaluation.
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