The major factors that make today’s ‘land-use crisis’ a global issue of greatest concern is:
AThe magnitude of the problem on terms of people and areas affected, which is unprecedented in historyOption A
BThe accelerating nature of the processes involved and the increasing irreversibility of their resultsOption B
CThe lack of success (for socio-economic, cultural or ecological reasons) of most agriculture technologies from temperate regions to solve land-productivity problems over large areas of the topicsOption C