1. Which of the following is a fundamental unit of the SI system of units? A) kilometer B) joule C) kilogram D) gram E) Newton 2. The SI unit for mass is Ajug B) mg C) g D) kg E) 1b 3. The prefix "pico" means A) 10-12 B) 10 C) 107 D) 10' E) 10' 4. Which of the following is NOT one of the fundamental physical quantities in the SI system ? A) mass B) length ") density D) time E) All of these are fundamental physical quantities in the SI system