What is a common risk associated with campfires or outdoor cooking?

The correct answer highlights that a grass fire is a common risk associated with campfires or outdoor cooking. When campfires are not properly controlled or extinguished, they can easily ignite dry grass and other vegetation nearby, which can lead to a fire that spreads rapidly. This is particularly true in environments where the vegetation is dry due to environmental conditions or seasonal changes.

Grass fires pose a significant threat not only to the immediate vicinity but also to larger areas, as they can quickly escalate and cause considerable damage to ecosystems, property, and even pose risks to life. Understanding this risk emphasizes the importance of fire safety measures when engaging in outdoor cooking or campfires, such as choosing the right location, keeping water or a fire extinguisher close by, and ensuring the fire is fully extinguished before leaving the area.

In contrast, the other scenarios — a car fire, boat fire, and structure fire — are less directly relevant to outdoor cooking activities. These types of fires usually involve specific circumstances related to vehicles or buildings, rather than the vegetation or outdoor settings typically associated with campfires.