Basic Concepts Flashcards
Science
Continuing human effort to systematize knowledge for describing and understanding nature
Chemistry
Composition,properties and interaction of matter
Acid rain
High concentration of oxides of sulphur and nitrogen
Green house gases effect
Drought,floods,high wind and storm -methane,carbon dioxide etc
Nitrous oxide
Messenger compound in transmission of brain waves and in immune system slow down growth of tumour cells
Chemical fertilisers
Urea,ammonium sulphate
Food preservatives
Sodium benzoate,sodium metabisulphite
Insecticide and pesticide
DDT,gammexane
Air conditioner
Liquid ammonia,liquid sulphur dioxide
Cancer drugs
Cisplatin,taxol
AZT azidothymidine
Drug in AIDS
Material for superconducting ceramics
Perovskites
Organic polymers that conduct electricity
Conducting polymers
Flexible transparent fibre made of pure glass (silica)not much wider than human hair
Optical fibre
CFCchloroflurocarbon
Refrigerant responsible for ozone depletion in stratosphere