Final answer:
It is true that lasers can provide the heat to make both continuous and spot welds, with some lasers producing a continuous output while others pulse in intense bursts.
Step-by-step explanation:
Your question asks whether it is true or false that a laser can provide the heat to make a continuous or spot weld. The answer is true. Lasers can indeed be used for welding, and there are various types of lasers designed for different applications. Some lasers, like the helium-neon lasers and diode lasers, can produce a continuous output of laser light. This continuous beam can be used to create continuous welds along seams. Other lasers are pulsed and emit light in short bursts that can deliver a high intensity of energy in a very brief time, which can be used for spot welding or precision welding tasks.