DENDROLOGY

Detailed explanation-1: -Fire suppression leads to the buildup of dead biomass in fire-prone ecosystems which may produce more severe fires when they do burn. Suppression policies were also relaxed following the discovery of fire-dependent features of plants.

Detailed explanation-2: -Three types of extinguishing agents are typically used-carbon dioxide, dry chemical, and foam water for fires involving flammable liquids, greases, and oils. Carbon dioxide is a compressed gas agent that prevents combustion by displacing the oxygen in the air surrounding the fire.

Detailed explanation-3: -The general procedure is to prevent fresh air from reaching the seat of the fire, allowing the combustion to reduce the oxygen content in the confined atmosphere until it extinguishes itself, for example by: Snuffing out candles.

Detailed explanation-4: -Nitrogen operates as a fire suppressant by reducing the oxygen content within a room to a point at which the fire will extinguish, without compromising the safety of individuals present in the room. Nitrogen will not decompose or produce any by-products when exposed to a flame.