The Orbits Explained - What is LEO, MEO & GEO?

Every day we’re sending millions of signals to space and back by utilising data over satellite technology.
To make this possible we need to place satellites around our planet, but where do we put them? There are three main categories of orbit that we have satellites in and each one comes with different properties.
And those three main categories are: LEO, MEO & GEO. But what are they? And what do they mean?
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