The sun, followed by fossil fuels and different kinds of materials. Fusion would be the next step in a source of energy for humans to use, but all methods used for fusion so far have failed to give a significant amount of energy output.
Sunlight is the main source of energy on earth
The Sun is the primary source of all energy on Earth.
We get most of our energy from the Sun.
Solar Energy.
Our main source of energy is the light and heat from the Sun.
The sun is the main source of energy on earth.
The primary is the sun
Sunlight is the main source of energy on earth
the sun is the main source of energy of the earth the sun is the main source of energy of the earth the sun is the main source of energy of the earth
Sunlight is the main energy source for life on earth.
The Sun is the primary source of all energy on Earth.
Chlorophyll is the source of all food energy on the planet earth.
sun
the sun
the sun
The sun, followed by fossil fuels and different kinds of materials. Fusion would be the next step in a source of energy for humans to use, but all methods used for fusion so far have failed to give a significant amount of energy output.
We get most of our energy from sunlight.