Many masterâs degree programs in medicine allow for specializations in a more specific area, such as immunology, speech pathology or health administration. Those who complete a Master in Medicine will be ready to either obtain a career in the health industry or pursue an even higher degree.
Direct drivers of deforestation in Amazon countries Cattle ranching Cattle ranching is the leading cause of deforestation in the Amazon rainforest. In Brazil, this has been the case since at least the 1970s: government figures attributed 38 percent of deforestation from 1966-1975 to large-scale cattle ranching.
Forest degradation and loss from the spontaneous expansion of people's activities into forest lands is notoriously difficult to quantify. Shifting agriculture is the primary cause of deforestation, accounting for about 45 per cent of the 7.5 million ha losses in tropical forests in 1976-1980. In 1980 it accounted for 35 per cent of deforestation in Latin America, 70 per cent in Africa, and 49 per cent in South-East Asia (notably Sri Lanka, Thailand, north-east India, Laos, Malaysia, and the Philippines) (Tolba et al., 1992).