Taj Mahal is regarded as eighth wonder the world. Millions of people from India and from abroad visit this great historic monument every year. They appreciate the architecture and the carvings. It is indeed, very prestigeous for every Indian. But over the years, it has faced immense pollution problems. It has lost its Iustre due to the presence of traces of hydrogen sulphide and other pollutants present in air.
(i)What is the main reason for the damage done to Taj Mahal and other historical monuments ?
(ii) How is damage actually caused ?
(iii) Suggest some ways to check the pollution ?