Answer:
D
Explanation:
A clash of personality occurs when two (or more) people get engaged in conflict not over a particular issue or occurrence, but due to a fundamental incompatibility in their personalities, values, ethics, modusoperandi or their style of life.
Maneka and Larson have two contrasting approaches in work ethic, which is responsible for their conflict.
Well, The Great Wall of China was built in c. 1644. So doing the math from that point of time to 2019, it is roughly 375 years old!
The correct answer is Salt
Salt was valued higher than gold or anything else because it is necessary for the survival of people yet salt was nowhere to be found.
The only answer related to the subject is "the results of their experiments".
After Scientific revolution scientists came up with theoretical conceptions and tried to prove them with experiments. There had to be both theoretical explanation and emirical proof. Before they were much more liberal when it comes to coming up with "scientific theorems", which explained results of their experiments.
