chemical war gases
81Michael Faraday — Born 22 September 1791(1791 09 22) Newington Butts, England …
82Hydrogen sulfide — Systematic name …
83Timeline of chemistry — lists important works, discoveries, ideas, inventions, and experiments that significantly changed mankind s understanding of the composition of matter and of the interactions thereof, the modern science known as chemistry. The history of… …
84Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …
85agricultural technology — Introduction application of techniques to control the growth and harvesting of animal and vegetable products. Soil preparation Mechanical processing of soil so that it is in the proper physical condition for planting is usually… …
86respiratory disease — ▪ human disease Introduction any of the diseases and disorders that affect human respiration (respiration, human). Diseases of the respiratory system may affect any of the structures and organs that have to do with breathing, including the… …
87Antoine Lavoisier — Lavoisier redirects here. For other uses, see Lavoisier (disambiguation). Antoine Lavoisier Line engraving by Louis Jean Desire Delaistre, after a design by Julien Leopold Boilly …
88Carbon dioxide — Carbon dioxide …
89Fire — For other uses, see Fire (disambiguation). An outdoor fire using wood, termed a bonfire …
90James Dewar — For other people named James Dewar, see James Dewar (disambiguation). James Dewar Sir James Dewar FRS Born …
