___________ are needed as a source of energy for the vital activities of the body? February 1, 2021 / By Preparation Point / Biology Mcqs Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA. Calcium B. Iron C. Water D. Carbohydrates Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn