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Multiple Choice
Which of the following can potentially harm the human ear due to excessive noise levels?
A
Fireworks
B
Normal conversation
C
City traffic
D
Rainfall
Verified step by step guidance
1
Step 1: Understand the concept of noise levels and their impact on human hearing. Excessive noise levels can damage the sensitive structures in the inner ear, leading to temporary or permanent hearing loss.
Step 2: Learn about the decibel (dB) scale, which measures sound intensity. Sounds above 85 dB are generally considered harmful if exposure is prolonged.
Step 3: Analyze the noise levels of each option provided: Fireworks typically produce sound levels exceeding 120 dB, which can be harmful even with short exposure. Normal conversation is around 60 dB, city traffic is approximately 70-85 dB, and rainfall is much lower, typically below 50 dB.
Step 4: Compare the noise levels of each option to the threshold of 85 dB. Identify which options exceed this threshold and could potentially harm the human ear.
Step 5: Conclude that fireworks are the most likely to harm the human ear due to their high noise levels, while the other options are below the harmful threshold.