"Lower classes" is the one among the following choices given in the question that was <span>responsible for physical construction of roads and bridges. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has actually come to your help.</span>
Se denomina planeta extrasolar<span> o </span>exoplaneta<span> a un </span>planeta<span> que orbita una estrella diferente al </span>Sol<span> y que, por tanto, no pertenece al </span>sistema solar<span>. Los planetas extrasolares se convirtieron en objeto de investigación científica en el siglo XX. Muchos </span>astrónomos<span> suponían su existencia, pero carecían de medios para identificarlos. La primera detección confirmada se hizo en 1992, con el descubrimiento de varios planetas de masa terrestre orbitando el </span>púlsar Lich.1<span> La primera detección confirmada de un planeta extrasolar orbitando alrededor de una estrella de la </span>secuencia principal<span> (</span>Dimidio<span>), se hizo en </span>1995<span> por los astrónomos </span>Michel Mayor<span> y </span>Didier Queloz.2<span> Desde entonces el número de hallazgos ha crecido año tras año.</span>
There were five major things that caused the U.S. Overseas Expansion:
1) New Manifest Destiny: the mission to reach from coast to coast
2) Commercial Expansion: the need for new interactions in international markets
3) Naval Power: this was still during the time when naval power was one of the greatest military powers a nation had. Having more of it, ensured your success in conflicts and influence
4) Darwinism/“White Man’s Burden”: Christian/Catholic missionaries’ missions to “uncivilized” nation, such as the ones in Africa
5) Closing of the Frontier: Americans wanted to have the “frontier”, or unmapped regions mapped and explored
All of these resulted in the spread of democracy, American influence and the realization that America was a big player at the table of nations.
He was on a Ferris wheel I think