Which of the following is the major cause for discoloration of the Taj Mahal?
High Temperature
Acid rain
Evaporation
Greenhouse effect
Acid rain is one the major cause for discoloration of the Taj Mahal.
Acid rain is one of the major cause for discoloring of Taj Mahal.
Acid rain is considered to be one of the major causes for discoloration of Taj Mahal.
Say True or False.