The South American government built the Trans Amazonian Highway to stimulate the economy; The farmers removed trees in the Amazon Rainforest to cultivate crops; and if the deforestation of the Amazon Rainforest reaches 25%, there would be extreme CO2 emissions.
The resources produced from the Amazon Rainforest contributes about 3/4th of the total GDP of South America.
When the government allowed free usage of the resources in the Amazon, the farmers started deforestation in order to practice cultivation of crops for their families.
The concern of deforestation in the region is such that if it reaches a level of 25%, much of the carbon dioxide emissions would remain in the atmosphere.
Hence, option B, C and A correctly describe the concerns related to the Amazon Rainforest.
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