Answer:
red supergiants is the answer
Answer:
Explanation:Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms. Energy is the ability to do work. Energy sources could be classified as Renewable and Non-renewable.
Combustion reactions release energy in the form of heat.
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I just took a test with this question and got the answer wrong for saying ethane. The correct answer is propane.