What is Combustion? Define Acid Rain.
What is Combustion? Define Acid Rain. Combustion : When we burn a fuel, the reaction is called combustion. The fuel reacts with oxygen gas from the air and heat is given out. Acid rain : Acid rain refers to any precipitation that is more acidic than that of normal rainwater. Acid rain is not pure acid falling from the sky. Acid rain describes any form of precipitation that contains high levels of nitric and sulfuric acids.