What is the difference between discovery and invention?

Answer 1

Discovery means to find something new which already existed in environment and Invention means to create something new that does some valuable work........

Answer 2

A discovery is recognizing something that already exists for the first time, that nobody has found before
An invention is creating something totally new with one’s own ideas and development. Although an invention is completely new to the world, the physical material needed for its production already exists, innovated from the ideas and experiences of the individual.