Physical Abilities: Tasks require the ability to exert moderate, though not constant physical effort, typically involving some combination of climbing and balancing, stooping, kneeling, crouching, crawling, and prolonged standing, and which may involve some lifting, carrying, pushing and/or pulling of objects and materials of moderate weight (10-50 pounds). Environmental Factors: Performance of essential functions may require exposure to adverse environmental conditions, such as dirt, dust, pollen, odors, wetness, humidity, rain, temperature and noise extremes, traffic hazards, bright/dim lights, animal/wildlife attacks, or animal bites.