FORESTRY
GENERAL FORESTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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____ is the portion of the fire from which air is moving away. This portion of the fire is moving slowest and is burned over.
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Rear
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Head
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Flank
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none of the answers listed
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Explanation:
Detailed explanation-1: -Oxygen. Air contains about 21 percent oxygen, and most fires require at least 16 percent oxygen content to burn. Oxygen supports the chemical processes that occur during fire.
Detailed explanation-2: -A twig catches fire easily because it heats up easily. Surface area: The bigger the area of the surface of the fuel, the more oxygen molecules can collide with the surface. The more oxygen molecules that collide per second with the fuel, the faster the combustion reaction is.
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