Question

How does the single member district election system contribute to the
Two-Party System, and how do voters contribute to it?

Answer 1

it is not much but helpful.....☺

In political science, Duverger's law holds that plurality-rule elections (such as first past the post) structured within single-member districts tend to favor a two-party system, whereas "the double ballot majority system and proportional representation tend to favor multipartism".

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Mark as a Brainliest......^_^