Question

What is acid rain? How does it cause 'Marble cancer ' ?​

Answer 1

Answer:

The slow corrosion (or eating up) of marble of a monument by acid rain is known as Marble cancer. The main cause of marble cancer is acid rain. Various gases like sulphur dioxide, oxides of nitrogen are released from factories. These gases react with the water vapour present in the atmosphere and form acids like sulphuric acid, nitric acid etc.

Explanation:

Answer 2

Answer:

The form of precipitation which is usually acidic in nature is called as Acid rain.

Explanation:

• Water vapour already present in the atmosphere when pollutants sulphur dioxide and nitrogen dioxide react with these water vapour and forms sulphuric acid and nitric acid.
• Now these acid get mix with rain and make it acidic in nature.
• This acids falls along with rain and corrodes building material like marble, and the phenomenon is called marble cancer.  
• Acid rain corrodes the marble monuments by dissolving Calcium.
• A very giod example of Marble cancer is Yellowing to Taj Mahal located in agra.