1.   No one could therefore call for the closure of incineration plants at a stroke, because noxious chemicals have to go somewhere.

2.   The chemical has an acrid smell.

3.   The chemicals have to be carefully selected so that they affect only the tin oxide and nothing else.

4.   This chemical has several important functions, including regulating motivation, mood and movement.

5.   Both scientists caution, however, that those other chemicals may have other flaws.

6.   Chemical had no branches in Rochester.

7.   Chemical probably has one more factor working in its favor.

8.   Chemicals have to be emptied from tanks, explosives have to be stored and equipment has to be secured, he said.

9.   Chemicals had to be emptied from tanks, explosives had to be stored and equipment secured, Allen said.

10.   In his earlier work on methoprene, he identified a lobster hormone and studied the effect that hormone-disrupting chemicals had on it.