Fill in the blanks: ________ causes corrosion of the marble or brick surface.
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Solution
Corrosion
Corrosion is the gradual breakdown of a material due to the action of chemicals.
Acid rain is formed when the gases react with the water vapor to form sulphuric acid and nitric acid in the atmosphere. On mixing with the rain, they form the acid rain.
Acid rain corrodes the marbles of the monuments because acid rain etches out calcium carbonate.
Final answer
Acid rain causes corrosion of the marble or brick surface.