Butyl rubber and EPDM (ethylene propylene diene monomer - a synthetic rubber) are the two best flexible liners for water garden construction. Each of these materials is UV stable and should last 20 years or more. EPDM and butyl rubber are generally available in 45 mil and 60- or 30-mil thicknesses, respectively.
human behavior. The capacity of mental, physical, emotional, and social activities experienced during the five stages of a human being's life-prenatal, infancy, childhood, adolescence, and adulthood.
humanism. 1  the quality of being human; human nature. 2  any system of thought or action based on the nature, interests, and ideals of humanity; specif., a modern, nontheistic, rationalist movement that holds that humanity is capable of self-fulfillment, ethical conduct, etc. without recourse to supernaturalism.he definition of humanism is a belief that human needs and values are more important than religious beliefs, or the needs and desires of humans.