Which of the following statements is (are) TRUE? 
Definitions:
Reliable Source of Power
A dependable and consistent means of generating energy, such as renewable resources or a stable electrical grid.
Heating and Cooling Costs
Expenses related to the energy consumption used to maintain a comfortable temperature inside a building through heating in the winter and cooling in the summer.
Environmental Pollution
The contamination of the natural environment by harmful substances or energies, leading to adverse effects on living beings and ecosystems.
Amateur Stargazing
The hobby or activity of observing stars and other celestial bodies for pleasure without professional equipment or knowledge.
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