<span>On February 15, 1898, a mysterious explosion sank the battleship.</span>
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the one having to do with urbanization increasing drastically, since many of the factories that took root during the Industrial Revolution were either in or around cities. </span></span>
The answer is the last one
It marked the turning point because it’s a union battle and it would be a win for the north not the south.
Hope this helps.
Fallout shelters are still someone in use but not for the purposes of nuclear fallout, only severe storms, etc. Th Interstate Highway System is the best choice from this list.