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ACROSS

1. A state, process, or instance of combustion in which fuel or other material is ignited and combined with oxygen, giving off light, heat, and flame
2. The visible vapor and gases given off by a burning or smoldering substance, especially the gray, brown, or blackish mixture of gases and suspended carbon particles resulting from the combustion of wood, peat, coal, or other organic matter
6. A hazard reduction technique sometimes used in forest management to reduce the amount of fuel in a given area
10. A brilliant electric spark discharge in the atmosphere, occurring within a thundercloud, between clouds, or between a cloud and the ground
11. A gradual process incurred by the change in the number of individuals of each species of a community and by establishment of new species populations that may gradually replace the original inhabitants
14. A plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground

DOWN

1. A large tract of land covered with trees and underbrush
3. A small live piece of coal, wood, etc., as in a dying fire
4. A place where a group of persons or an individual is lodged in a tent or tents or other temporary means of shelter
5. The chronological record of the occurrence of fire in an ecosystem
7. Answerable or accountable, as for something within one's power, control, or management
8. Undomesticated animals living in the wild, including those hunted for food, sport, or profit
9. The natural environment of an organism; place that is natural for the life and growth of an organism
12. Pieces of glowing, charred, or burned wood or other combustible substance
13. The quality of averting or not causing injury, danger, or loss

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