after concentration with ammonia only, with an alkalinity of at least % (m/m) calculated with respect to the latex. latex preserved after concentration with ammonia only, with an alkalinity of at least % (m/m) calculated with respect to the latex. la latex preserved after concentration with ammonia...
which result in global warming . . chemical fertilizers and pesticides chemical fertilizers and pesticides are used by farmers to protect crops from insects and bacterias. they are useful for the plant's growth. however, when these chemicals are mixed up with water produce harmful for plants and animals...