Resource Rich but Economically Backward Regions:

1. Sub-Saharan Africa:
- Abundance of natural resources such as oil, diamonds, gold, and timber
- Lack of infrastructure and political stability
- Exploitation of resources by foreign companies rather than domestic investment

2. Venezuela:
- Large oil reserves
- Corruption and mismanagement of resources by the government
- Dependence on oil exports leading to vulnerability to fluctuations in global oil prices

3. Papua New Guinea:
- Rich in natural resources such as gold, copper, and timber
- Lack of infrastructure and education
- Exploitation of resources by foreign companies leading to environmental degradation and minimal benefit for the local population

Resource Poor but Economically Developed Regions:

1. Japan:
- Scarcity of natural resources
- Focus on technology, innovation, and manufacturing
- Heavy reliance on imports, leading to high prices for consumers

2. Singapore:
- No natural resources apart from strategic location
- Focus on trade and services industry
- Attraction of foreign investment and skilled labor

3. South Korea:
- Limited natural resources
- Focus on technology and manufacturing
- Heavy investment in education, infrastructure, and research and development.

Reasons for Such Situations:

1. Historical Factors:
- Colonization and exploitation by foreign powers
- Legacy of slavery and forced labor
- Displacement of indigenous populations

2. Political Factors:
- Corruption and mismanagement of resources by governments
- Lack of political stability and security
- Conflict and war

3. Economic Factors:
- Dependence on a single resource for exports
- Lack of diversification in the economy
- Limited access to capital and investment

4. Social Factors:
- Inequality and poverty
- Limited access to education and healthcare
- Discrimination based on race, ethnicity, or gender.