Energy resources derived from natural organic materials are called

geothermal energy sources
fossil fuels
biomass
all of these

The correct answer is C. biomass.

Biomass is a renewable energy source that comes from living or recently living organisms. It includes plant materials such as wood, agricultural crops, and waste products from forestry and agriculture. Biomass can be used to generate electricity, heat, and transportation fuels.

Geothermal energy sources are heat from the Earth’s interior. This heat can be used to generate electricity, heat buildings, and provide hot water.

Fossil fuels are non-renewable energy sources that formed from the remains of ancient organisms. They include coal, oil, and natural gas. Fossil fuels are used to generate electricity, power transportation, and heat buildings.

Biomass is a renewable energy source because it can be replenished over time. Geothermal energy sources are also renewable, but they are not as widely available as biomass. Fossil fuels are non-renewable energy sources because they cannot be replenished once they are used up.