Definitions [5]
Define rusting?
Rusting: Slow conversion of iron into its hydrated oxide in the presence of moisture and air is called rusting.
Define the following:
Respiration
Respiration: Respiration is a chemical process that takes place in all living beings (slow in plants). In this process, oxygen present in inhaled air reacts with the digested food material in the body. This results in the release of energy, carbon dioxide, and water.
Sugar + Oxygen → CO2 + Water + Energy.
Define the term Global warming.
Global warming : An increase in the percentage of carbon dioxide, methane, nitrous oxide and chlorofluorocarbon traps the heat causing the temperature of the earth and its surroundings to rise. This is known as global warming.
Define the following:
Combustion.
Combustion: Combustion also called burning “is burning of substance in the oxygen of air completely producing heat and light is called combustion.”
Define the term smog.
Smog : Oxides of nitrogen form a mixture of smoke and fog known as smog which affects our eyes too.
