SONAR is ________

Options

A. Special navigation and range
B. Sound Navigation and Ranging
C. Sound nesting and resting
D. Sound nevigation amplifier ranger

Answer

**Step-by-Step Solution:**

1. **Understanding the Term SONAR**: SONAR is an acronym that stands for a specific phrase. We need to identify what this phrase is.

2. **Identifying the Options**: The possible options provided are:
- A) Special Navigation and Range
- B) Sound Navigation and Ranging
- C) Sound Nesting and Resting
- D) Sound Navigation and Amplifier Ranging

3. **Analyzing the Options**:
- Option A (Special Navigation and Range) does not relate to sound, so it can be eliminated.
- Option C (Sound Nesting and Resting) does not make sense in the context of navigation or ranging.
- Option D (Sound Navigation and Amplifier Ranging) is incorrect as it adds unnecessary terms.

4. **Choosing the Correct Option**:
- The only option that accurately describes SONAR is Option B: Sound Navigation and Ranging. This is a technique that uses sound waves to navigate and measure distances underwater.

5. **Understanding the Function of SONAR**: SONAR works on the principle of echo. It involves sending sound waves from a transmitter, which then reflect off objects (like the seabed or obstacles) and return to a receiver. This helps in determining the distance and size of these objects.

6. **Conclusion**: Therefore, SONAR is defined as Sound Navigation and Ranging.

**Final Answer**: SONAR is Sound Navigation and Ranging.

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