Question 16 (1 point) the sediment on the sea floor is toward the margins of the ocean. very thin at the volcanic ridges and is missing thick at the volcanic ridges and then thickens more very thick at the volcanic ridges and then thins very thin at the volcanic ridges and then thickens

the only other powers were germany russia and uk and they were too busy fighting each other wearing each other down   that the us was becoming strong and they were becoming weaker

i have no idea oh hey

i think the answer to your question is: settlement of the interior and economic growth. ( ^_^)／