For a surface storm system to intensity, the upper-level low (or trough) should be located to the WEST of the surface low.
<span>Zambia has large copper resources and is one of the world's largest exporters of copper. However, it is very dependent on this resource, and when the price of copper goes down, the economy suffers.</span>
Correct answer is : Us Virginia island , Guam and American Samoa.
Northern Marina Island and Puerto Rico are the only ones with the status of commonwealth
