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Description
Flashcards by syronpowell, updated more than 1 year ago
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Created by syronpowell
about 11 years ago
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| Question | Answer |
| visibility is the distance in which an object can be clearly seen and distinguished during normal daylight | . The ability to see an object from a distance depends on both the nature and size of the object. .thus the object used in estimating visibility needs to vary with its distance from the observer. |
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