The three main types of solder are lead-free solder, lead-based solder, and flux-core solders. There is another type known as silver alloy solder. These types are made on the composition of alloys. Apart from this, there are other solder types depending on the form, core style, and application.
Answer:
Son
Explanation:
María y Nora son bolivianos
Answer:
madre
Explanation: your mom is the daughter of your grandmother and the sister of your aunt