Question

______ is the source of almost half of all renewable energy in the United States.

Answer 1

Biofuel.

Step-by-step explanation:

Renewable energy in the United Stated is mostly sourced from Biofuel with an 22.4% of all renewable sources used.

Biofuel comprehends fuels that are made from organic material, exactly, biomass.

Biomass is plant or animal material used as energy, like forest residues or animals waste.

Answer 2

Biomass is the source of almost half of all renewable energy in the United States.