Question bank: Ecology: Biogeochemical Cycles

The carbon cycle is a complex system that involves the movement of carbon dioxide between different Earth reservoirs, such as the atmosphere, oceans, and living organisms. What happens to carbon dioxide when it is absorbed by ocean water?

Explain what biogeochemical cycles are and give examples of two of them, such as the water cycle and the carbon cycle. Discuss briefly how human activity can alter the dynamics of these cycles, including practices such as burning fossil fuels and deforestation. Relate these changes to possible environmental impacts, such as climate change and loss of biodiversity.

Biogeochemical cycles are essential for the maintenance of life on the planet, as they involve the circulation of chemical elements between organisms and the environment. Among the main biogeochemical cycles, the carbon, nitrogen, and phosphorus cycles stand out. Considering the importance of these cycles for ecosystem maintenance, what are the main processes involved in the carbon cycle? How can human activities interfere with these cycles and what are the consequences of this interference for ecosystems? Suggest an individual or collective action that can minimize the negative impacts of human activities on biogeochemical cycles.

What is the term used to describe the process in which chemical elements are cyclically transferred between the environment and living organisms, going through different stages such as absorption, use, release, and recycling?