11. choose the best answer. a(n) ____ builds and maintains machines such as airplanes and physical…
11. choose the best answer. a(n) ____ builds and maintains machines such as airplanes and physical structures such as buildings. engineer chemist researcher biologist
Answer
Brief Explanations:
Engineers are professionals who design, build, and maintain machines like airplanes and physical structures like buildings. Chemists focus on chemical - related work, researchers conduct research in various fields, and biologists study living organisms.
Answer:
A. engineer