<span>39,680 in 2016. I think hope this helped! :)</span>
The word you're looking for is waning. When the moon's illumination is increasing, it is waxing.
Answer:The quality or state of being volcanic; volcanic activity. ... The level of power of a volcano.
Explanation:
The answer to this would be A, because they began to spread westward once they decided to head away from the Arctic.