Petra is working on a project that is looking for ways to improve milk yield. What is Petra’s job title

Petra's job title is a researcher

Explanation:

A researcher is someone who takes on a particular project, that involves  systematic and organized investigation either to improve on something, make a new finding,or a novel invention or results.

        Back to our question Petra can also be called a scientist, analyst, investigator, experimenter, analyzer, tester, and she can work in the research and development (R&D)  of a food related industry

the best answer is b.

hope this : )

answer; randomization;