A exoskeleton is a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection. Insects, crustaceans, and many other invertebrates have a hard outer case called an exoskeleton. This protects them against blows and predators, and keeps them from drying out
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Community development is a holistic approach grounded in principles of empowerment, human rights, inclusion, social justice, self-determination and collective action (Kenny, 2007). Community development considers community members to be experts in their lives and communities, and values community knowledge and wisdom.
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Water pollution - the surface water runoff and the groundwater close to a construction site become polluted with various materials used in the construction work. ... In fact, both groundwaters below your home and surface runoff close to your home may constitute a source of pollution emanating from the construction sites.
