Why did most american think the united states should extend to the pacific ocean?
a. they had already settled the lands of the great plains and needed more rooms.

b. they feared invasion by mexico

c. they wanted too make sure great britain did not claim the land

d. they believed out was their right to possess this land

the answer is D hope this helps :D

Explanation:

entering that problem on the tube you may come up with an answer

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.