Why are renewable energy sources often considered “alternative”

Renewable energy sources are often considered alternative sources because in general, most industrialized countries do not rely on them as their main energy source. Hope this helps!!

Renewable energy sources are often considered alternative sources because, in general, most industrialized countries do not rely on them as their main energy source. Instead, they tend to rely on non-renewable sources such as fossil fuels or nuclear power.

Explanation:

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