Global warming is the long-term heating of Earth's surface observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily due to burning of fossil fuels (NASA, 2023). Which of the following biogeochemical cycle is most likely altered resulting to global warming?a.Carbon cycleb.Nitrogen cyclec.Phosphorus cycled.Sulfur Cycle

The biogeochemical cycle most likely altered resulting in global warming is the Carbon cycle.

Here's why:

1. Burning of Fossil Fuels: When we burn fossil fuels like coal, oil, and gas, we are releasing carbon that has been stored in these fuels for millions of years. This adds a significant amount of carbon dioxide into the atmosphere, which is a potent greenhouse gas.

2. Deforestation: Trees absorb carbon dioxide from the atmosphere and store it in their biomass. When we cut down trees, we are not only removing a significant carbon sink, but also releasing the stored carbon back into the atmosphere if the wood is burned or decays.

3. Industrial Processes: Many industrial processes also release carbon dioxide into the atmosphere. For example, cement production involves the calcination of limestone, which releases carbon dioxide.

4. Ocean Acidification: The excess carbon dioxide in the atmosphere is absorbed by the oceans, leading to ocean acidification. This alters the carbon cycle in the oceans and can have detrimental effects on marine life.

These human activities have significantly altered the carbon cycle, leading to an increase in atmospheric carbon dioxide concentrations and thus contributing to global warming.