What is a result of increased flooding and fires in relation to toxic chemical exposure from climate change?

The question addresses the consequences of climate change-induced events like increased flooding and fires, focusing on toxic chemical exposure. The correct response highlights that such environmental disasters can lead to greater demand for building materials as communities rebuild and recover from the damage inflicted by these catastrophes.

After floods and fires, structures often need to be repaired or replaced, leading to an escalated need for construction materials. This process can involve using new materials that might not be environmentally friendly or could release harmful toxins, thereby exacerbating exposure risks to hazardous chemicals.

The other options do not directly relate to the context of increased flooding and fires. For instance, decreased exposure to hazardous materials contradicts the increased risks that arise during such disasters, while reduction in toxic waste production does not typically occur alongside increased environmental distress. Additionally, less reliance on agricultural products does not align with the demand created by the necessity to adapt to or recover from climate change impacts. Thus, the increased need for building materials is a logical and relevant outcome of the scenario posed in the question.