Why did john white leave roanoke, and what did he find on his return

When the colonists landed on Roanoke Island in July 1587, John White soon returned to England for supplies. Almost three years passed before his return to Roanoke. When he finally got back, the colony had disappeared. Roanoke's fate remains a mystery.

c

explanation:

by 1880, germany had more rail lines than great britain and russia.