Final answer:
The fires set within the Amazon are known as Deforestation fires, driven by human activities including slash-and-burn farming, agriculture, and cattle ranching. They contribute significantly to loss of biodiversity and climate change, distinguishing them from controlled burns or natural wildfires.
Step-by-step explanation:
The proper term for the fires set within the Amazon is Deforestation fires. These fires are predominantly caused by human activities such as logging, agriculture, particularly slash-and-burn farming, and cattle ranching. These deforestation practices are a significant environmental concern, as they lead to the loss of biodiversity and contribute markedly to climate change. Currently, the Amazon Basin is facing rampant deforestation, wherein vast swathes of rainforest are deliberately burned to make way for agriculture or cattle pasture.
Deforestation fires are different from natural wildfires or controlled burns, which are intentional fires managed by forestry services to maintain the health of an ecosystem. The situation in the Amazon, however, often involves illegal burning and is driven by economic factors such as the demand for timber, agricultural land, and space for cattle ranching. The resulting destruction can be seen in regions like Rondônia in western Brazil and contributes significantly to the destruction of the world's original forests and imperils biodiversity hotspots.