Question

Which of the following is an example of chemical weathering? a. waves washing over rocks on the beach b. acid rain falling on sidewalks c. ice forming in the cracks of rocks d. wind blowing against rocks

Answer 1

B. acid rain falling on sidewalks

Answer 2

b. Acid rain falling on sidewalks

Step-by-step explanation:

Hello,

Acid rain contains majorly carbonic acid
`H_2CO_3` which could react with the concrete that is used to make sidewalks. This chemical reaction, although varies based on the concrete's composition, usually gives off carbon dioxide owing to the acid's instability and leads to the weathering since the sidewalks start to wear out and subsequently break down.

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