Noise and its effects

Noise and its effects

Noise create great trouble for us. So louder noise is more harmful for ears. All animals cannot hear all the same sounds. All sounds have different frequencies those are measured in units called hertz. The higher sounds have higher hertz numbers. Lower sounds have lower hertz umbers.

Many high sounds that bats, mice, cats, dogs, dolphins and whales can hear but humans can’t hear that sounds. In the same way there are some low sounds that humans can hear but bats, mice, cats, dogs, dolphins and whales can’t hear.

The waves of the sounds can travel swiftly in warm weather than they do in cold weather.

Hearing Frequencies of different animals

Human             20-20,000hz


Whale              1000-120,000hz


Dolphin            75-150,000hz


Mouse             1000-100,000hz


Cat                 45-65,000hz


Dog                50-45,000hz


Bat                2000-120,000hz


Elephant        5-12,000hz