How to replace an old iPad with a new one?

Hello there, I'm curious about the process of replacing an old iPad with a brand new one. Could you walk me through the steps? Do I need to back up my current iPad first? What about transferring my apps and data to the new device? Are there any specific precautions I should take when setting up the new iPad? Additionally, how do I properly dispose of my old iPad in an environmentally friendly way? I'd appreciate any guidance you can provide.