1. An extraordinary achievement in technology 2. Robot is an invention of the moderntimes. A robot is a mechanical or virtualintelligent agent that can performtasks…
Myriam, Salwa, Viktoria 8C ZINC Zinc facts Zn Atomic # 30 Atomic weight 65.38 Silver-gray Group number 12 Period 4 Reacts to alkalis and acids. Zinc smudges in air Discovery…