Why have there been little inland settlement in America's early years?

post the grid otherwise i cant .

also it sounds like a math question not history.

can you post options?

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.

the main concern with the first draft of the articles of confederation was too much power in the state governments.