Which energy source is sustainable?

Which energy source is sustainable?

• A. Biomass
• B. Coal
• C. Oil
• D. Natural Gas

Answer: (A)

Sustainability in energy means choosing sources that can be replenished over human timescales and that minimize long-term environmental impact. Biomass fits this idea because it comes from recently grown organic material that can be replenished through regrowth or new harvests, creating a renewable cycle when managed responsibly. In contrast, coal, oil, and natural gas are fossil fuels formed over millions of years; once burned, they release stored carbon and are effectively finite on human timescales, contributing to rising greenhouse gases and depleting resources faster than they can be replaced. Biomass energy can be near carbon-neutral because the CO2 released when it’s burned is largely offset by the CO2 the plants absorbed while growing. Of course, the overall sustainability depends on how the biomass is produced, transported, and converted, since inefficient practices or unsustainable sourcing can erode those benefits. Still, among the options listed, biomass is the sustainable choice, while the fossil fuels are not.

Sustainability in energy means choosing sources that can be replenished over human timescales and that minimize long-term environmental impact. Biomass fits this idea because it comes from recently grown organic material that can be replenished through regrowth or new harvests, creating a renewable cycle when managed responsibly. In contrast, coal, oil, and natural gas are fossil fuels formed over millions of years; once burned, they release stored carbon and are effectively finite on human timescales, contributing to rising greenhouse gases and depleting resources faster than they can be replaced.

Biomass energy can be near carbon-neutral because the CO2 released when it’s burned is largely offset by the CO2 the plants absorbed while growing. Of course, the overall sustainability depends on how the biomass is produced, transported, and converted, since inefficient practices or unsustainable sourcing can erode those benefits. Still, among the options listed, biomass is the sustainable choice, while the fossil fuels are not.