Sir walter was unable to establish a successfuk colony at roanoke island because

A lot of the members of the colony became very ill. The terrain and the resources in Roanoke were very minimal and not efficient. All the members of the colony later on disappeared and nobody to this day knows what happened.

Explanation:

answer; the mercertator creation, is the correct answer to the above question; ///good luck

option c

explanation:

strive for superiority