6. Which of the following change is permanent a. glowing a bulb. b. rusting of iron c. boiling water d. melting ice​

B

Explanation:

Because iron can only be destroyed by its own rust which weakens the iron and cannot be undone hence it is a permanent change

responsibilities im assuming

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.