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#55686 Bangla Language & Literature Basic Information of Daily Science Inventions and Level 0

The atom is made of---

  1. A Neutrons, Gamma Rays and Positrons
  2. B Positrons, Neutrons and Electrons
  3. C Protons and Quarks
  4. D Protons, Neutrons and Electrons
Answer: B - Positrons, Neutrons and Electrons

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