41.   Caltrans contends that the chemicals are necessary to keep down brush that can become a fire hazard and weeds that crack pavement and obscure visibility for drivers.

42.   Chemicals were the weak spot for Arco in the first quarter.

43.   Chemical was clearly in control but took the more prestigious name.

44.   Chemicals in tobacco are no friend to young-looking skin.

45.   Chemicals were among the biggest decliners.

46.   Chemicals would be easier to dispense than germs because the pore size of unmodified sprayer nozzles is right for dispensing liquid chemicals.

47.   Colorless and odorless, the chemical is the most toxic nerve agent known, many times deadlier than hydrogen cyanide gas.

48.   Commodity chemicals are basic chemicals -- like ethylene and benzene -- that are manufactured in large quantities at chemical complexes and priced according to supply and demand.

49.   Commodity chemicals are basic materials, often derived from petroleum, that are used as building blocks to make plastics, synthetic fibers, paints and cosmetics.

50.   Depending on the concentration, these chemicals can be quite toxic, particularly to developing fetuses and young children.