Which theory laid down that all matter is composed of discrete units called: March 27, 2021 / By Preparation Point / MODEL PAPER 85: ASSISTANT DIRECTOR (BS-17) – 2018 in Local Government & Community Development Department Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA) Combustion theory B) Radioactive theory C) Atomic theory✓ D) Metallic theory Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn