What is the difference between a volcanic planet and a geologically dead planet?

A volcanic planet is a planet that is still geologically active and has volcanic activity, such as lava flows, eruptions, and volcanic ash. This activity is caused by internal heat sources, such as magma chambers or radioactive decay. Some examples of volcanic planets in our solar system include Venus, Earth, Mars, and Jupiter's moon, Io. On the other hand, a geologically dead planet is a planet that no longer has any geologic activity or tectonic movement. This means that the planet has cooled down to the point where it no longer has a molten core, and as a result, no longer has volcanoes or earthquakes. An example of a geologically dead planet in our solar system is Mercury, which is a small and rocky planet that has cooled down to the point where it no longer has volcanic activity or tectonic movement.