Consider the following statements about pollution
I.Pollution is an undesirable change in physical ,chemical or biological characteristics of air ,land ,water or soil
II.the air act was amended in 1987 to include noise as air pollutant
III.In order to control environmental pollution the government of India has passed the environment protection Act ,1976 to protect and improve the quality of our environment
Which of the statements given above are correct?

Options

A. I,II
B. I,III
C. II and III
D. all of these

Answer

To determine which statements about pollution are correct, we will analyze each statement one by one.

**Step 1: Analyze Statement I**
- Statement I: "Pollution is an undesirable change in physical, chemical or biological characteristics of air, land, water or soil."
- This statement is correct. Pollution indeed refers to any undesirable alteration in the natural characteristics of the environment, including air, water, and soil.

**Step 2: Analyze Statement II**
- Statement II: "The air act was amended in 1987 to include noise as an air pollutant."
- This statement is incorrect. The Air (Prevention and Control of Pollution) Act was enacted in 1981, and while it was amended in 1987, it primarily focused on air quality and did not specifically classify noise as an air pollutant at that time. Noise pollution was addressed later through different regulations.

**Step 3: Analyze Statement III**
- Statement III: "In order to control environmental pollution, the government of India has passed the Environment Protection Act, 1976 to protect and improve the quality of our environment."
- This statement is incorrect. The Environment Protection Act was actually enacted in 1986, not 1976. The act aims to provide for the protection and improvement of the environment.

**Conclusion:**
- After analyzing all three statements, we find that only Statement I is correct. Therefore, the correct answer is that only Statement I is true.

**Final Answer:**
- Only Statement I is correct.

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