The number of weeks your baby was premature: 6 weeks. Subtract the number of weeks premature from the chronological age: 20 weeks minus 6 weeks equal 14 weeks. 14 weeks is your baby's adjusted age.
The use of chemical fertilizer containing anhydrous ammonia can lead to exposure. Outdoor exposure to high levels of anhydrous ammonia can result from leaks and spills at production plants and storage facilities, and from pipelines, tank trucks, railcars, or ships and barges that transport ammonia.
Ammonia   Ammonia is a compound of hydrogen and nitrogen, with formula NH3. Under normal circumstances it is a very toxic gas. It is a common precursor for many chemi â¦ cal products, particularly fertilizers and explosives.  What you buy in the store as ammonia is a very dilute solution of ammonia in water. The anionic (negatively charged) Chlorine end of the salt molecule is attracted to the 2 cationic (positively charged) Hydrogen ions of the water molecule: Cl-wants H2+.