(Originais Teachy 2023) - Question Hard of Geography

In a global scenario of concern about climate change and the search for sustainable solutions, renewable energies stand out as an alternative to conventional energy sources, such as fossil fuels. Considering this perspective, (1) explain what renewable energies are and cite three examples of energy sources that fall into this category. (2) Discuss how the adoption of renewable energies can contribute to reducing the economic and socio-environmental impacts resulting from the exploitation of natural resources, paying special attention to local practices and commitment to sustainability. (3) Present arguments demonstrating the importance of renewable energy matrices in the current context and how they can be implemented at different analysis scales.

The Southern Common Market (Mercosur) is an international organization created in 1991 by Argentina, Brazil, Paraguay, and Uruguay, with the aim of promoting economic integration among these countries. However, the integration process of the bloc faces considerable challenges both economically and politically. Considering the importance of Mercosur for the region and the complexity of the factors involved in its integration, analyze and discuss the following aspects: 1) Evaluate how the diversity of interests and economic asymmetries among Mercosur members can influence the adoption of common policies in the bloc, highlighting concrete examples of measures that have been hindered or facilitated by these issues. 2) Examine how political changes in the governments of member countries can affect the dynamics of Mercosur's economic integration, considering both changes in political alignment and adopted economic orientations. Specify how a scenario of political instability in one of the countries could impact decision-making and the implementation of internal Mercosur agreements.

Africa is a continent with great ethnic, cultural, and environmental diversity, but it also faces considerable socioeconomic challenges such as poverty, hunger, and lack of access to education and healthcare. How do these socioeconomic characteristics affect the development of African countries and their positioning in the global economic context? Additionally, mention two examples of policies or initiatives being carried out by African countries or international organizations to address these challenges and promote sustainable development on the continent.