Final answer:
The common characteristic of a country in Africa is limited access to basic healthcare and education, while a key factor for long-term economic growth is investment in physical and human capital.
Step-by-step explanation:
Question 22:
The common characteristic of a country in Africa is D. Limited access to basic healthcare and education for a significant portion of the population. Africa still faces challenges in providing widespread access to quality healthcare and education, which can hinder development and improve living standards.
Question 23:
To ensure long-term economic growth, a key factor to consider is c. Investment in physical and human capital. By investing in infrastructure, such as building roads and improving education and skills training, countries can create the necessary foundations for economic development and increased productivity.
Learn more about Characteristics of countries in Africa and factors for long-term economic growth