What happens to air pressure and the amount of oxygen as the latitude increases in earths atmosphere?

As latitude increases in Earth's atmosphere, the air pressure generally decreases. This is because the air at higher latitudes is typically colder and denser, leading to lower pressure.

Similarly, the amount of oxygen in the atmosphere also decreases with increasing latitude. This is primarily because the atmosphere becomes thinner at higher latitudes, meaning there is less air overall, including less oxygen. Additionally, the colder temperatures at higher latitudes can cause the oxygen molecules to become more tightly packed, further decreasing the amount of oxygen available.