SimilarityRank
carbon 0.796 3087
fuels 0.794 9417
petroleum-based 0.790 79740
fossil-fuel 0.775 91442
inorganic 0.765 28012
dioxide 0.763 10273
non-renewable 0.759 56124
energy-intensive 0.753 95480
biofuels 0.753 26111
hydrogen 0.752 9917
fossil 0.745 9494
nanotubes 0.734 58295
biofuel 0.731 33305
feedstocks 0.731 76964
gases 0.728 11662
polymers 0.728 31022
oxides 0.726 42880
cellulosic 0.723 66673
gaseous 0.722 42339
deuterium 0.719 86208
hydride 0.718 95787
gasses 0.718 45276
byproducts 0.717 42005
methane 0.715 19799
nanomaterials 0.711 66739