It is suggested that students, NGO, and ;rural and urban areas, constructs or set up different types of the attic artificial nest, rainwater harvesting with fishery and floating gardening covered by wired-net with artificial nest, shaded by solar-panel supplying electricity for oxygen-producing motor in water, OR rooftop-/-vertical-gardening with multiple-intercropping attached with 'Bird's-/ Sky-Observer Box-shaped Balcony', forming the common complex ecosystem on ecology food-chain relationships issues, and nutritious kitchen garden management, micro-and macro- climate issues, and also community health also, and act as the "Only Environmental Science Act as Natural Biomedicine Preventive Epidemic Model of 21st Century Pandemic Diseases!", which improved biodiversity, agriculture, civil-engineering, Science-technology-communication, socio-economy-welfare, developing the future policy; the theme "Vision-2040" that would retain the human civilization's in old-forms because "Happiness brings good health and wellbeing with the help of civil engineering and environmental biologist".