C. national sanctity of human life
Darwin.... maybe. Because of his evolution theory
Answer: B) So they can communicate their results without confusion
Explanation: There are other systems besides the metric system, though the metric is the most commonly used system. In the SI international system, all units are derived from each other, forming a unique international standard. That way, all scientists around the world, or at least most of them using the SI system, can communicate in a unique scientific "language" without confusion and misunderstanding.
A) non-dominant side, dominant side
D) non-dominant side, center, dominant side
C) Return to the center for the question portion.
A) left-handed
D) lists of five items
It is a historical term indicating trade among three ports or regions.
I think this is why, but hope it helps :)
