In crown fires, which part of the tree is involved?

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Multiple Choice

In crown fires, which part of the tree is involved?

Explanation:
Crown fires burn in the canopy—the tops of the trees where the foliage, needles, and small branches provide the fine fuels. In dry, windy conditions, heat radiates into the crowns and flames can jump from tree to tree via the canopy or embers carried by the wind, making the tops of trees the active fuel zone. Roots stay underground and aren’t part of crown-fire spread, and while trunks can burn if heat penetrates into the tree, the defining feature of a crown fire is that the burning fuel is in the crowns themselves.

Crown fires burn in the canopy—the tops of the trees where the foliage, needles, and small branches provide the fine fuels. In dry, windy conditions, heat radiates into the crowns and flames can jump from tree to tree via the canopy or embers carried by the wind, making the tops of trees the active fuel zone. Roots stay underground and aren’t part of crown-fire spread, and while trunks can burn if heat penetrates into the tree, the defining feature of a crown fire is that the burning fuel is in the crowns themselves.

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