Which of the following contributes maximum noise?

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Sound from industries

Sound of a barking dog

Sound from kitchen appliances

Sound of birds chirping

answer is A.

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Detailed Solution

Sound from industries - has the potential to contribute the maximum noise. Industries that produce loud machinery, and heavy equipment, or run continuously can significantly contribute to ambient noise levels in the surrounding areas.
Sound of a barking dog - can be annoying, but its contribution to the overall ambient noise levels is usually limited to a specific area and time.
Sound from kitchen appliances - is typically not a significant contributor to ambient noise levels unless the appliances are faulty or excessively loud.
Sound of birds chirping - can be pleasant to hear, but its contribution to the overall ambient noise levels is usually limited to a specific area and time, and it is unlikely to be a significant contributor to noise pollution.

Therefore, the answer is Sound from industries.

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