What will happen to the oxygen when people cut down rain forest?

The oxygen levels in the atmosphere will decrease if people cut down rain forests. Rain forests are important sources of oxygen, as they contain a large amount of vegetation which produces oxygen through photosynthesis. When rain forests are cleared, the vegetation is removed and the amount of oxygen produced is reduced. This can lead to a decrease in the oxygen levels in the atmosphere, which can have a negative impact on human health and well-being.