Your question is Five Ways to Join Metal Sheets. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What are five ways of joining metal sheets?
Keep your answer practical: name the methods, when each is appropriate, and the main tradeoff for strength, heat input, cost, or serviceability. If relevant, note how you would choose between them for thin versus thick sheet metal.
