<span>it investigated conditions facing working women and passed laws aimed at guaranteeing them equal pay</span>
Answer: Technology developed in systems of interdependent parts.
Explanation: The human being, endowed with his intelligence, sought ways throughout history to overcome the obstacles imposed by nature. Thus, it was developing and inventing technological instruments in order to overcome difficulties. We may say that necessity is the mother of great technological inventions.
Answer:
Rulers of Ethiopia still go by the title of pharaoh.