1-Discuss the effects of income inequality on a nationâ€™s economic conditions? What does Gini coefficient measure? Explain in some detail how individual countries can have increasing inequality if the entire world has decreasing inequality? What is the 2 different type of inequality ?
2-does global climate change exists? What does global climate means? Why is it important to understand the dynamics of global change? What are the possible solutions for this phenomenon? What actions should be taken to minimize the effect?
3-what does biodiversity imply? Why should one be concerned about biodiversity? Explain why the discovery of energy by theâ€ rebel organismâ€ is increasing seen as a major source of risk for the earth system ?