1. Flammability means the ability of a material to catch fire and burn easily. Degradable materials can break down into smaller pieces over time due to environmental factors but not necessarily through natural processes. Biodegradable materials can be naturally broken down by microorganisms into harmless substances. Non-biodegradable materials do not break down naturally or take a very long time to decompose.2. Examples of materials:Flammable - wood, paper, gasoline, fabric, keroseneDegradable - plastic bags, Styrofoam, synthetic rubber, paint, detergentBiodegradable - food scraps, paper, cotton, leaves, woolNon-biodegradable - plastic bottles, glass, metal cans, Styrofoam, synthetic fabrics