Modifiers matching precursor:

• molecular,
• chemical,
• inorganic,
• volcanic,
• color,
• immediate,
• polymeric,
• simple,
• solid,
• carbonaceous,
• charged,
• salt,
• toxic,
• acidic,
• acid,
• volatile,
• smaller,
• conventional,
• active,
• individual,
• exogenous,
• liquid,
• explosive,
• natural,
• synthetic,
• oxidizable,
• additional,
• dietary,
• organic,
• complex,
• reactive,
• biological,
• weather,
• ceramic,
• common,
• elemental,
• soluble,
• metal,
• legal,
• controlled,
• key,
• starting,
• genetic,
• available,
• important,
• biochemical,
• gaseous,
• granular,
• neutral,
• essential,
• biodegradable,
• single,
• basic,
• fibrous,
• alternative,
• metabolic,
• small,
• possible,
• fatty,
• aromatic,
• stable,

Simple categories matching carbonaceous:

• fuel,
• compound,
• nature,
• material,
• residue,
• filler,
• sorbent,
• matter,
• solid,
• component,
• precursor,
• electrode,
• pitch,
• substance,
• article,
• aggregate,
• deposit,
• particle,
• contaminant,
• atmosphere,
• fabric,
• rock,
• product,
• surface,
• combustible,
• content,
• gas,
• system,
• unit,
• powder,
• fibre,
• waste,