The first person who explained & introduced the machine to the society was Nikola Tesla
Heat flows from the reacting substances out to the surroundings in an exothermic reaction.
The thermal energy of the surroundings increases as a result of an exothermic reaction.
Heat flows in to the reacting substances from the surroundings in an endothermic reaction.
The thermal energy of the surroundings decreases as a result of an endothermic reaction.
Explanation:
When the new star reaches a certain size, a process called nuclear fusion ignites, generating the star's vast energy. The fusion process forces hydrogen atoms together, transforming them into heavier elements such as helium, carbon and oxygen.
Answer: Population, Territory, Government, Sovereignty.
