Infrasound can be heard by :

Options

A. dog
B. bat
C. rhinocerose
D. human beings

Explanation

**Step-by-Step Solution:**

1. **Understanding Infrasound:**
- Infrasound refers to sound waves that have a frequency below 20 Hz. This means that these sounds are at a lower frequency than what humans can typically hear.

2. **Frequency Sensitivity:**
- Humans generally can hear sounds in the frequency range of approximately 20 Hz to 20,000 Hz (20 kHz). Sounds below 20 Hz fall into the category of infrasound, which is not audible to humans.

3. **Hearing Ability of Infants:**
- Infants may have a slightly better ability to hear lower frequencies compared to adults, but as they grow older, their sensitivity to these low frequencies diminishes.

4. **Animals and Infrasound:**
- Certain animals possess the ability to hear infrasound due to their sensitivity to low-frequency sounds. These animals are often referred to as infrasonic animals.

5. **Example of Infrasonic Animals:**
- One notable example of an infrasonic animal is the rhinoceros. Rhinoceroses have highly developed auditory systems that allow them to detect sounds at frequencies below 20 Hz.

6. **Conclusion:**
- In summary, infrasound can be heard by certain animals, particularly those like rhinoceroses that have the physiological capability to detect low-frequency sounds.

**Final Answer:**
Infrasound can be heard by certain animals, such as rhinoceroses, which are sensitive to low-frequency sounds.

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