PATHOLOGY

Detailed explanation-1: -Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas.

Detailed explanation-2: -Wind and sunlight are renewable resources that can be replenished as we use them, unlike natural gas and petroleum, which will deplete with extraction and, hence, cannot be renewed.

Detailed explanation-3: -Natural gas is not renewable energy. Renewable energy sources, by definition, come from naturally recurrent, auto-replenishing processes, and gas is a fossil energy source that will not be replenished in our lifetimes or indeed many, many human lifetimes.