Final answer:
The internal heat from the core of a planet contributes to supporting life through geological activity, the generation of a magnetic field, and the greenhouse effect.
Step-by-step explanation:
The internal heat from the core of a planet contributes to supporting life on that planet in several ways. Firstly, this heat allows for geological activity, such as volcanism and mountain building, which creates the conditions necessary for the formation of landforms and the recycling of elements on the planet's surface. Secondly, this heat drives the tectonic processes that generate a planet's magnetic field, which is crucial for protecting the planet's atmosphere from the solar wind and maintaining a stable climate. Lastly, some of this heat is trapped by greenhouse gases in the planet's atmosphere, resulting in a suitable temperature range for life to thrive.