What is the latitudinal line that separates the northern and southern hemisphere?

I believe this would be the Equator, as it is what divides the Earth in half going horizontally, thus creating our North and South Hemispheres.

The Earth's Northern and Southern Hemispheres are divided by the equator, which is an imaginary line located at 0 degrees latitude. The Northern Hemisphere consists of most of Asia, northern South America, Europe, North America and two-thirds of Africa's landmass.

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