What was most significant about robert fulton’s steamboat? it was the first to successfully travel long distances. it was the first working steamboat to receive a patent. it was the first to demonstrated the ability to travel to the northwest territory. it was the first commercially used steamboat.

D, It was the first commercially used steamboat.

Explanation:

got it right on edge

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.