Answer:
In 1862, the Central Pacific and the Union Pacific Railroad Companies began railroad that would link the United States from east to west.
Explanation:
Gondwana was an ancient supercontinent that broke up about 180 million years ago. The continent eventually split into landmasses we recognize today: Africa, South America, Australia, Antarctica, the Indian subcontinent and the Arabian Peninsula.
When citizens cast their ballots for president in the popular vote, they elect a slate of electors. Electors then cast the votes that decide who becomes president of the United States. Usually, electoral votes align with the popular vote in an election.
the second one
any dangerous situation