The earth's main source of energy is the sun
- The main source of energy on the earth is the sun true or false
- The main source of energy for most life on earth is the sun
- The sun is planet earth's main source of energy
- The sun is the main source of energy for the earth explain
- The sun is the main source of energy on the earth give reason
- Is the sun main source of energy for life on the earth explain
- The sun is the main source of light energy on the earth true or false
- The sun is considered as the main source of energy on the earth why
- Is the sun main source of energy for life on the earth
- The sun is the main source of light energy on the earth
- The sun is the main source of heat energy on the earth
- The sun is the main source of heat energy on the earth true or false
- The sun is the main source of energy for all the subsystems of earth