The Earth produces geothermal energy. The geothermal gradient is the amount of increase in temperature with depth.
The earth having a temperature gives off black body radiation. It is almost all in the form of infra red radiation.
I think radiant energy
the ligth and the warmth
electromagnagnetic waves
It is geothermal energy, coal energy, and natural gas and oil energy.
Geothermal energy is thermal energy that is made and stored in the Earth. Thermal energy determines the temperature of things. Geothermal energy can be used for electricity.
The energy made by the turbine/generator is electrical, but the source of the energy is geothermal
the answer is thermal
Earth has internal energy due to radioactivity. I am not sure what you mean by radioactive external energy, or simply by external energy. Earth gets most of its energy from the Sun.
Radiation!
It is geothermal energy, coal energy, and natural gas and oil energy.
geothermal
With respect to matter, Earth is a closed system and with respect to energy, Earth is an open system.
geothermal
solar energy
geothermal
The kind that's bad for our Earth. :(
The energy from the Sun, solar energy drives all the process important to life on Earth.
The energy from the Sun, solar energy drives all the process important to life on Earth.
Gravity
Solar energy drives all the processes important to life on Earth.