The best option that replaces the question mark in this question is option B. Negative effects of harvesting Brazil's rain forest.
The reason why this is the answer is because all of the bulleted options are the negative effects of land degradation.
Harvesting a rainforest means that there is a destruction of the habitat such as the felling of trees.
When this is done to the extreme, the land would be exposed leading to extreme weather conditions, decline in the productive strength of the land, sends the organisms and animals out of their natural habitats.
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