scientific theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments.
Answer:
Hippocrates was born around 460 BC on the island of Kos, Greece. He became known as the founder of medicine and was regarded as the greatest physician of his time. He based his medical practice on observations and on the study of the human body. He held the belief that illness had a physical and a rational explanation.
Answer: More people are becoming prosperous and can now afford vehicles
Explanation: The nation is building new things and there is new jobs so people are getting hired and getting jobs then they can afford jobs and get vehicles which was a economic impact on transportation use