What happened to the colony that was established on roanoke island in 1587?

The colony disappeared.

Explanation:

Investigations into the fate of the “Lost Colony” of Roanoke have continued over the centuries, but no one has come up with a satisfactory answer. “Croatoan” was the name of an island south of Roanoke that was home to a Native American tribe of the same name. Perhaps, then, the colonists were killed or abducted by Native Americans. Other hypotheses hold that they tried to sail back to England on their own and got lost at sea.

b. second continental congress

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.