Owner of Jones Mineral Cabinet, Geology and Paleontology Supervisor, interested in Earth and Planetary sciences. #1. Clastic or Detrital Sedimentary Rocks The class(t)ic route begins with the weathering and erosion of sedimentary, igneous, or metamorphic rocks.
A flame retardant is a chemical substance that is added to materials during their manufacturing process in order to both reduce the likelihood of the finished product catching fire and slow down combustion. Source: GreenFacts.
What is GROWTH RETARDANT? A synthetic substance used to retard the growth of a plant, eg to stop the sprouting of stored onions or to restrict the height of grain crops, eg maleic hydrazide. synthetic substance used to retard the growth of a plant, eg to stop the sprouting of stored onions or to restrict the height of grain crops, eg maleic hydrazide.