Answer:
May 10, 2019, marks the 150th anniversary of an iconic, historic event in American history—the completion of the transcontinental railroad. This 19th century engineering triumph would redefine the nation, connecting the east coast to the west coast by rail.
Explanation:
Thermosphere is the correct answer
The first person in space was Yuri Alekseyevich Gagarin, the space rocket, Vostok 1, that sent Yuri into space was manufactured by Energia,
Voters can be overwhelmed and vote by randomly guessing.
It puts too much of the onus of learning about the issues and candidates on voters.
It can include, state, local, municipal, national and federal candidates.