Final answer:
Farming practices involving agricultural animals do not increase the amount of oxygen in the atmosphere; instead, these animals contribute to greenhouse gas emissions, particularly methane and carbon dioxide, leading to global warming.
Step-by-step explanation:
The amount of oxygen in the atmosphere does not increase as a result of farming practices involving agricultural animals. In fact, these animals contribute to the production of greenhouse gases, specifically through the emission of methane and carbon dioxide, which can lead to global warming. Methane is a potent greenhouse gas, and while farming practices such as rice paddies are significant contributors to agricultural methane production, agricultural animals like cattle raise atmospheric carbon levels through their digestive processes. These emissions do not contribute to an increase in atmospheric oxygen; rather, they contribute to an increase in greenhouse gases in the atmosphere. Furthermore, the destruction of natural carbon sinks to expand agricultural land exacerbates greenhouse gas emissions.