- The sun is the source of solar energy called sunlight
- Solar energy is a renewable / inexhaustible resource
- Therefore, the sun is a renewable resource

- The sun is a renewable resource
- Coal is a nonrenewable resource
- Therefore, coal is nonrenewable and the sun is renewable

So, coal is nonrenewable and the sun is renewable
How do coal and the sun compare as sources of energy?
- The sun is the source of solar energy called sunlight 
- Coal is a nonrenewable resource 
- Solar energy is a renewable / inexhaustible resource