This statue of leshan giant buddha in sichuan, china, is carved directly into the mountainside. the color and texture of the statue are constantly changing due to the pollutants from vehicles and industries nearby. what are the two main causes of the changes to the statute?

The correct answer is rainfall and chemical reaction.

Explanation:

The statue of Great Buddha is under spontaneous modification and it is gradually but surely getting weathered. The two prime causes for this is rainfall and chemical reactions taking place.  

The water falling due to rainfall is one of the prime reasons for rocks weathering, the water is considered to decompose or destruct the rocks with time. The other factor is chemical reactions, as we all know that China is faced with a huge issue of pollution. Due to this, the air in China comprises enough amount of pollutants, which are resulting in serious destruction to the majority of the things, comprising the statue of Great Buddha, and it results in quicker decomposing due to its corrosive power and modification in color in comparison to anything else.  

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explanation:

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