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| Terms for subject Environment (5878 entries) |
| nature protection (Precautionary actions, procedures or installations undertaken to prevent or reduce harm to the elements of the material world that exist independently of human activity) | حماية الطبيعة | |
| nature reserve (Areas allocated to preserve and protect certain animals and plants, or both. They differ from national park, which are largely a place for public recreation, because they are provided exclusively to protect species for their own sake. Endangered species are increasingly being kept in nature reserves to prevent them from extinction, particularly in India, Indonesia and some African countries. Natural reserves were used once to preserve the animals that landowners hunted, but, in the 19th century, they became places where animals were kept to prevent them from dying out. Special refuges and sanctuaries are also often designated to protect certain species or groups of wild animals or plants, especially if their numbers and distribution have been significantly reduced. They also serve as a place for more plentiful species to rest, breed or winter. Many parts of the world also have marine and aquatic reserves to protect different species of sea or freshwater plant and animal life) | محمية طبيعية | |
| nature's amenities | مواقع استجمام | |
| nature's amenities | مواقع طبيعية | |
| nausea | غثيان | |
| navigation (The science or art of conducting ships or aircraft from one place to another, esp. the method of determining position, course, and distance travelled over the surface of the earth by the principles of geometry and astronomy and by reference to devices (as radar beacons or instruments) designed as aids) | ملاحة | |
| navigational hazard (Any obstacle encountered by a vessel in route posing risk or danger to the vessel, its contents or the environment) | مخاطر الملاحة | |
| necrosis (The pathologic death of living tissue in a plant or animal) | التنكرز | |
| need (The fact or an instance of feeling the lack of something) | حاجة | |
| negotiable charge | رسوم قابلة للتفاوض | |
| neighbourhood improvement scheme | خطة تحسين الحي | |
| neighbourhood law (A binding rule or body of rules prescribed by a government to protect human health and the environment, manage growth and development or enhance the quality of life in small geographical and social areas within cities where residents share values and concerns and interact with one another on a daily basis) | قانون الجيرة | |
| neighbourhood noise (General noise from a local source (such as the noise of a factory) which is disturbing to people living in the area) | ضوضاء الجيرة | |
| nematode (A group of unsegmented worms which have been variously recognized as an order, class, and phylum) | الدودة السلكية أو الخطية | |
| nervous system (A coordinating and integrating system which functions in the adaptation of an organism to its environment; in vertebrates, the system consists of the brain, brainstem, spinal cord, cranial and peripheral nerves, and ganglia) | الجهاز العصبي | |
| nesting (The building of nests for egg laying and rearing of offspring) | بناء العُش | |
| nesting area (A place where birds gather to lay eggs) | منطقة تعشيش | |
| net CO2 positive | حصيلة إيجابية صافية لثاني أكسيد الكربون | |
| net resource depletion (The total decrease in the amount of natural materials available for use by humans and other living beings) | صافي استنفاذ المورد | |
| netting policy (All emission sources in the same area that are owned or controlled by a single company are treated as one large source, thereby allowing flexibility in controlling individual sources in order to meet a single emissions standard; emissions trading) | سياسة الشبكية |