On a school trip ot an industrial estate, students found that the marble used in the office building
Channel: Doubtnut
Date: 2020-01-26

On a school trip ot an industrial estate, students found that the marble used in the office buildings has lost its shine and become pitted. (i) What is the reaons of marble pitting? (ii) Can this factor cause harm to vegetation as well? Suggest methods to prevent this.