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D Answer each question.
1. What is the range of frequencies a human ear can hear?
2. What is the speed of sound?
3. Whích two animals locate things by echoes?
nitch of your voice?

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zkthetiger

Answer:

Step-by-step explanation:

1. Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.

2. speed of sound is 343 m/sec.

3. two animals are Bats and Whales.

4.The voiced speech of a typical adult male will have a fundamental frequency from 85 to 180 Hz, and that of a typical adult female from 165 to 255 Hz.

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