For example, zeolite is used primarily because it adsorbs ammonia, while activated carbon is used primarily because it adsorbs organic molecules and {HEAD ~ inorganic molecules} responsible for causing odors and {TAIL ~ undesirable colors} 
responsible for causing
For example , zeolite is used primarily because it adsorbs ammonia , while activated carbon is used primarily because it adsorbs organic molecules and { HEAD ~ inorganic molecules } responsible for causing odors and { TAIL ~ undesirable colors }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL