the answer to this is 13 times I think lol
Sea floor leveling.
Hope this helped, have a great day! :D
I realize that quite some time has passed since you asked this question but I do have the answers for other people with the same question.
So, the correct answer is
Wake Island,
Marshall Islands,
Palau,
Northern Mariana Islands,
& Guam
In the trophoshere
hope this helps!
The National Mall is a long narrow but open area where many museums are located, but I'm not sure if that's the correct answer.