The United States wanted to be the first country to have an astronaut in outer space and lost to the Soviet Union. Yuri Gagarin, a Russian cosmonaut, was the first person to orbit the Earth.

In the first sentence, which words would provide a more appropriate transition than and? Select two options.

but
nor
so
thus
yet

but

Explanation:

'but' would be more appropriate than 'and' given the context.

articles of confederation

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.