Definicija: A traditional farming system that has been used by generations of farmers in tropical forests and the savannah of north and east Africa. It is known to be an ecologically sound form of cultivation, and because the soil is poor in tropical rain forests it is a sustainable method of farming. It is still practised today, primarily in the developing countries. Small areas of bush or forests are cleared and the smaller trees burned. This unlocks the nutrients in the vegetation and gives the soil fertilizer that is easily taken up by plants. A few years later the soil is degraded and the farmer moves on to do the same at another site. The original ground is left fallow for anything up to 20 years so that the forest can regenerate. With the growth in population and in the subsequent need for more farming land to produce food, the method is increasingly being used today to clear large areas of tropical forests for cattle ranching, and in most cases the ground is not left fallow for long enough and, with modern mechanized farming systems, not enough tree stumps or suitable habitats for plant life are left to start the regeneration process.

Definicija: Tradicionalna oblika kmetijstva, ki so jo uporabljale generacije kmetov v tropskih gozdovih in savanah severne in vzhodne Afrike. včasih je bila to ekološko primerna oblika obdelovanja v tropskem deževnem gozdu, kjer je prst nerodovitna. Še danes se uporablja v deželah v razvoju. Majhna področja grmovja ali gozda so očiščena, majhna drevesa požgana. S tem se sprostijo hranila vegetacije, prst je pognojena in rastline to zlahka vsrkajo. Čez nekaj let se prst izrabi in kmetje se preselijo na novo območje, kjer ponovijo isti postopek. Izvorna zemlja ostane neobdelana do 20 let in gozd se lahko obnovi. Z rastjo prebivalstva in posledično večjo potrebo po obdelovalni zemlji za proizvodnjo hrane, se metoda danes v večji meri uporablja za očiščenje velikih področij v tropskem gozdu za živinorejo. V večini primerov zemlja ne počiva dovolj dolgo, zaradi uporabe modernih mehaniziranih kmetijskih pripomočkov, ne ostane dovolj štorov ali drugih primernih habitatov, da bi se lahko rastlinsko življenje obnovilo, zato je ta metoda okoljsko nesprejemljiva.

Definicija: Assets are tangible items of value such as factories, machinery, financial instruments and intangibles such as goodwill, the title only of a newspaper or a product's brand name. Liabilities are items of negative value that cover tangibles such as assets which hold a high risk factor and intangibles such as financial obligations.

Definicija: An acute, highly contagious, viral infection of cloven-hooved animals (cattle, deer, sheep, goats, pigs, etc.) characterized initially by vesicular lesions and subsequently by erosions of the epithelium of the mouth, nares, muzzle, feet, teats, udder, and rumen pillars. Very rarely lesions of foot-and-mouth disease occur in man.