The interior of the Earth is slowly cooling.
Sounds like your thermostat could be stuck open.
A geostationary satellite does not trace a path over the surface of the earth because that is what geostationary means - the satellite is stationary over a point on the Earth.
I assume you mean the heat in Earth's interior. This heat comes from three sources. (1) Heat left over from when the Earth formed. This part should be quite insignificant, since Earth has had enough time to cool down. (2) Decay of radioactive isotopes. (3) The fact that the liquid part of the Earth is gradually solidifying also generates heat.
The core (Earth's interior, as you stated above) is believed to be composed of iron (80%), as well as nickel and several light elements, whereas other dense elements like uranium and lead are either too uncommon to be obvious, or may bind to the lighter elements and stay in the Earth's crust. Some people once argued that the inner core could actually be in the form of one single iron crystal. :O and since the inner core of the Earth is extremely hot, and all hot things cool over time, the Earth's core is solidifying over time (though VERY slowly so don't worry)
Components of the earth that changed the least over time include the earth's crust and mantle and the structure of the earth's interior. Other structures that have changed very little include the components of the atmosphere.
If the mantle of the earth interior were to cool down the convection currents and plate tectonics would stop. That would mean that there would be no more earthquakes or volcanoes.
It does cool faster, it has a lower specific heat capacity and so cools at a faster rate, only by a few degrees over say 30 minutes, but it is.
The study of Earth's atmosphere is called meteorology. Geology is the study of the Earth, including Earth's surface and interior; geologists study the origin, history, and structure of Earth and the processes that shape it over time.
No. The Earth won't "explode"! Volcanoes relieve pressure over relatively small areas, but the planet's Crust and interior as a whole are basically in equilibrium.
100 degrees Celsius over the next billion years is what I read when searching the same question.
That is false
That is false