Developing nations are countries that are in the process of industrialization and economic growth. They often have lower income levels, limited access to education and healthcare, and less advanced infrastructure compared to developed nations. These countries may rely heavily on agriculture and have a higher percentage of their population living in poverty. Many developing nations face challenges such as political instability, inadequate resources, and environmental issues. Organizations like the United Nations and World Bank work to support these countries by providing financial aid, promoting sustainable development, and helping to improve living conditions for their citizens.