These environmental modifications were made in order to construct

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

answer: the ocean

explanation: if you map out 30 n and 40 n latitude, you will get the ocean

the answer is false.

those who allied with france gained land and power.