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.
Answer:
I wish I can help but i dont know what to do
Can you elaborate on that??
<span>A variant-ratio schedule rewards behaviors an average number of times on an unpredictable basis. The schedule has to be a ratio because it refers to a number of times the behavior must occur to be rewarded not the amount of time that must pass like an interval schedule. The schedule cannot be fixed because it says "average" not a specific amount of time or number of behaviors; therefore, it is a variant-ratio schedule.</span>
