A)Decide which word is the odd one out in each of the following groups of words: 1. natural, social, digital,technical

A.1. natural, social, digital,technical - digital2.digital,natural,analog,hybrid - natural3.theories,tools,machines,materials - theories4.radio,knowledge,telephone,television - knowledge5.the universe,plants,trees,animals - the universeB.1.natural,social,technical-power2.digital,analog,hybrid- technologies3.radio,television,telephone-means of communication4.tools,machines,materials-resources5.plants,animals,trees-nature