What most likely caused the condition shown in this photograph?

A.
overpopulation

B.
deforestation

C.
high carbon dioxide levels

D.
competition for water

B. Deforestation.

To accurately determine the cause of a condition shown in a photograph, I would need to have access to the specific image you are referring to. Unfortunately, as an AI text-based model, I am unable to analyze or view images. Please provide more details or information about the condition, and I will be happy to assist you further.