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| Terms for subject Environment (5878 entries) |
| natural self-purification | القدرة على التنقية الذاتية | |
| natural self-purification | التنقية الذاتية الطبيعية | |
| natural stone (A gemstone that occurs in nature, as distinguished from a man-made substitute) | حجر طبيعي | |
| natural value | قيمة طبيعية | |
| nature conservation (Active management of the earth's natural resources and environment to ensure their quality is maintained and that they are wisely used) | حماية الطبيعة | |
| nature conservation legislation (A binding rule or body of rules prescribed by a government to protect, preserve or renew an area's natural habitats or ecosystem) | تشريع حماية الطبيعة | |
| nature conservation organisation | منظمة حماية الطبيعة | |
| nature conservation policy | سياسة الحفاظ على الطبيعة | |
| nature conservation programme (An organized group of activities and procedures, often run by a government agency or a nonprofit organization, to preserve and protect elements of the natural world such as mountains, trees, animals or rivers) | برنامج حماية الطبيعة | |
| 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 |