Question detail
What is the primary method used to recycle metals?
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. Melting and recasting
- B. Crushing and grinding
- C. Chemical treatment
- D. Incineration
Answer
The correct option is Melting and recasting. This answer is correct because it matches the approved learning objective to describe how metals can be recycled by melting and recasting or reforming in the subtopic Ways of reducing the use of resources.
Explanation
The correct option is Melting and recasting. Melting and recasting is correct because it directly supports the approved learning objective to describe how metals can be recycled by melting and recasting or reforming. This belongs to the subtopic Ways of reducing the use of resources within Life cycle assessment and recycling, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Ways of reducing the use of resources.
Common mistake
Misunderstanding Metal Recycling
Students often confuse the processes of melting and recasting metals with simply reusing them without processing.
Emphasize that recycling metals involves melting them down and reforming them into new products, rather than just reusing the same metal item.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.