Final answer:
Fire and smoke signals have limitations related to visibility, range, complexity, misinterpretation, and security.
Explanation:
Disadvantages of fire and smoke signals:
- Dependency on visibility and weather conditions for effective signaling.
- Limited message complexity and range compared to modern communication methods.
- Potential for misinterpretation or confusion due to lack of standardized codes.
- Susceptibility to signal interception by unintended recipients.
- Difficulty in maintaining signal accuracy over long distances.
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