Question

How the early man used to communication​

Answer 1

Answer:

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

Explanation:

with the hands

Answer 2

Early humans could express thoughts and feelings by means of speech or by signs or gestures. They could signal with fire and smoke, drums, or whistles. These early methods of communication had two limitations. First, they were restricted as to the time in which communication could take place.