Hi,
The first of the main sources of energy for earth is photosynthesis, and it is provided by the Sun.
the point inside the earth where the first movement of an earthquake occurs and energy is released is called the epicenter.
the point inside the earth where the first movement of an earthquake occurs and energy is released is called the epicenter.
during photosynthesis
The energy waves form at the focus which is the location within Earth along a fault at which the first motion of an earthquake occurs
No, the Earth gets its energy from the sun, not producing its own energy.
it does reach the earth in light energy.
Because the Earth spins around so the Earth can get energy
There are many of energy sources in earth like solar energy, geothermal energy, hydroelectricity, tide energy, nuclear energy.
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.
An object that rotates has the tendency to continue rotating. There is no need for a continuous energy supply. In this case, the rotational energy was there from the moment that Earth formed. - Actually, to be precise, at first there was much more rotational energy; Earth's rotation has been slowing down due to tidal forces. It will continue slowing down until Earth always shows the same side to the Moon.
It's the amount of energy given out by the sun, and the energy received by the earth. Within that is the energy reflected and the energy given off from the earth.
Energy from the sun to Earth travels as electromagnetic energy, or light energy.