Due to the effect of acid rain, stone buildings are corroded. This type of damage to the stone building is called_________?
تیزابی بارش کے اثر سے پتھر کی عمارتیں زنگ آلود ہو جاتی ہیں۔ پتھر کی عمارت کو پہنچنے والے اس قسم کے نقصان کو کیا کہا جاتا ہے؟
- Stone Bleeding
- Stone Disease
- Stone Cancer
- All of these
Explanation
Stone cancer is a phenomenon in which the discoloration of stones/marbles occurs due to acid rain.
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