the world's human population is now above 7 billion people. over 50% of these people are in the developing countries in the world and are faced with many challenges trying to provide a stable environment for their citizens to thrive. discuss, with clear examples, the five main challenges these countries face. there will be 6 points for each example and explanation. the biodiversity of plan and animal species (flora and Fauna) dictates all our social and economic activities. Discuss six key inputs into our lives from biodiversity that we cannot live without.