The heat energy is everywhere around us. Even in volcanoes, icebergs, in every object heat is present. Heat is the main form of energy for the people to survive in this world. Heat energy is the main vital source for earth.
Sun
Electricity
Chemical energy
Nuclear energy
Question : What are the main energy sources for Earth's internal heat engine?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile