BIOMASS is renewable ____ material that comes from plants and animals; this ranges from wood and left over crops to garbage.

manufactured

refined

organic

chemical

BIOMASS is renewable ____ material that comes from plants and animals; this ranges from wood and left over crops to garbage.

manufactured

refined

organic

chemical

1 answer

The correct answer is organic.

So the complete sentence would be:

"BIOMASS is renewable organic material that comes from plants and animals; this ranges from wood and leftover crops to garbage."