Which of the following is an example of an environmental challenge in Africa today?

A.
conflict between the Hausa people and the Yoruba people in Nigeria

B.
the lack of machinery needed for manufacturing

C.
a limited number nongovernmental organizations (NGOs) in Africa

D.
the spread of cholera due to limited access to clean water

The correct answer is D. the spread of cholera due to limited access to clean water.

To find the answer, we need to analyze each option.

A. Conflict between the Hausa people and the Yoruba people in Nigeria is a social and political challenge, not an environmental one.

B. The lack of machinery needed for manufacturing is an economic challenge, not an environmental one.

C. The limited number of non-governmental organizations (NGOs) in Africa is a socio-political and economic challenge, not directly related to the environment.

D. The spread of cholera due to limited access to clean water is an example of an environmental challenge. Cholera is a waterborne disease, and the limited access to clean water contributes to its spread in Africa.

By analyzing each option, we can see that option D describes an actual environmental challenge.