Question

which of the following processes is shown by arrow 4 in the image below? *

decomposition

nutrition feeding

cellular respiratoin

burning fossil fuels

Explanation:

• Decomposition is the process by which organic matter (such as dead plants and animals) is broken down. In the carbon cycle diagram, arrow 4 points from organic matter (which can be from dead organisms) to the soil - related layer.
• Nutrition/feeding (arrow 3) is about organisms consuming food. Cellular respiration (arrow 2) releases \(CO_2\) from organisms to the atmosphere. Burning fossil fuels (arrow 7) releases \(CO_2\) from fossil fuels (like coal, oil) to the atmosphere.

Answer:

Decomposition