What is not affected by the global ocean circulation?Group of answer choicesheat distributionfood supplyclimatenone of theseatmospheric oxygen supply

To determine which aspect is not affected by global ocean circulation, we should analyze the provided options in relation to ocean circulation's impact.

1. Heat Distribution: Global ocean circulation plays a crucial role in distributing heat across the planet. Warm water from the equator flows towards the poles, influencing climate patterns.

2. Food Supply: Ocean circulation affects the distribution of nutrients in the water, which in turn impacts food supply, particularly in marine ecosystems. Areas of upwelling promote high productivity and support fisheries.

3. Climate: Ocean circulation is integral to climate regulation. It influences weather patterns and climate systems, such as El Niño and La Niña.

4. Atmospheric Oxygen Supply: While the ocean contributes to oxygen production, primarily through phytoplankton, the global circulation itself does not directly affect the atmospheric oxygen levels; rather, it is influenced by biological processes within the ocean.

5. None of These: This option suggests that all the above factors are impacted by ocean circulation, which is not the case for atmospheric oxygen supply.

Conclusion

The aspect not affected by global ocean circulation is atmospheric oxygen supply.