Which of the following statements are incorrect statements for acid rain (A) it corrodes water pipes (B) it is not harmful for trees and plants (C) it does not cause breathing problem in human being and animals (D) it damages building and other structures made of stone or metal

Options

A. A,B
B. B,C
C. A,C
D. B,D

Answer

To determine which statements about acid rain are incorrect, let's analyze each option one by one.

### Step-by-Step Solution:

1. **Understanding Acid Rain**:
- Acid rain is defined as rain that has a pH level lower than that of normal rainwater, which typically ranges from 5 to 5.5. Acid rain usually has a pH of around 4 or lower due to the presence of acids like sulfuric acid (H₂SO₄) and nitric acid (HNO₃) formed from pollutants such as sulfur dioxide (SO₂) and nitrogen oxides (NOₓ).

2. **Analyzing Statement (A)**: "It corrodes water pipes."
- Acid rain can indeed corrode water pipes due to its acidic nature, which can leach heavy metals from the pipes. This statement is **correct**.

3. **Analyzing Statement (B)**: "It is not harmful for trees and plants."
- Acid rain negatively affects trees and plants by damaging their leaves, roots, and the soil they grow in. This leads to reduced growth and health of the plants. Therefore, this statement is **incorrect**.

4. **Analyzing Statement (C)**: "It does not cause breathing problems in human beings and animals."
- The pollutants that contribute to acid rain (like SO₂ and NO₂) can cause respiratory issues when inhaled. Thus, this statement is also **incorrect**.

5. **Analyzing Statement (D)**: "It damages buildings and other structures made of stone or metal."
- Acid rain can corrode buildings, monuments, and structures made of stone and metal, leading to significant damage over time. A notable example is the discoloration of the Taj Mahal due to acid rain. Therefore, this statement is **correct**.

### Conclusion:
The incorrect statements regarding acid rain are:
- **(B)** It is not harmful for trees and plants.
- **(C)** It does not cause breathing problems in human beings and animals.

### Final Answer:
The incorrect statements are **B and C**.

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