Carbon cycle worksheet | TPT - Free Printable

The image you provided illustrates the Carbon Cycle, which is a fundamental biogeochemical cycle that describes how carbon moves through Earth's atmosphere, land, oceans, and living organisms. Below, I will explain the solution by identifying the key components and processes involved in the carbon cycle as depicted in the diagram.

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Key Components and Processes in the Carbon Cycle

1. Photosynthesis (Sun → Plants):
- Process: Plants absorb carbon dioxide (\( \text{CO}_2 \)) from the atmosphere using sunlight during photosynthesis.
- Result: Plants convert \( \text{CO}_2 \) and water (\( \text{H}_2\text{O} \)) into glucose (a form of carbon-based energy) and oxygen (\( \text{O}_2 \)).
- Diagram Representation: The sun provides energy to plants, which take in \( \text{CO}_2 \) from the atmosphere.

2. Respiration (Plants and Animals):
- Process: Both plants and animals release carbon dioxide back into the atmosphere through respiration.
- Result: During respiration, organisms break down glucose to produce energy, releasing \( \text{CO}_2 \) and water as byproducts.
- Diagram Representation: Plants and animals (e.g., sheep) exhale \( \text{CO}_2 \), which goes back into the atmosphere.

3. Decomposition (Dead Organisms → Soil):
- Process: When plants and animals die, decomposers (such as bacteria and fungi) break down their organic matter.
- Result: Decomposition releases carbon dioxide and nutrients back into the soil and atmosphere.
- Diagram Representation: Dead organisms are broken down, and \( \text{CO}_2 \) is released into the atmosphere.

4. Combustion (Fossil Fuels → Atmosphere):
- Process: Burning fossil fuels (coal, oil, natural gas) releases large amounts of carbon dioxide into the atmosphere.
- Result: Human activities, such as burning coal in power plants, contribute significantly to atmospheric \( \text{CO}_2 \).
- Diagram Representation: A factory or power plant emits \( \text{CO}_2 \) into the atmosphere.

5. Atmospheric Exchange:
- Process: Carbon dioxide is constantly exchanged between the atmosphere and other reservoirs (oceans, land, and living organisms).
- Result: Oceans absorb \( \text{CO}_2 \) from the atmosphere, while plants and animals release it back into the atmosphere.
- Diagram Representation: Arrows show the movement of \( \text{CO}_2 \) between the atmosphere, plants, animals, and factories.

6. Ocean Absorption:
- Process: The ocean acts as a major carbon sink, absorbing \( \text{CO}_2 \) from the atmosphere.
- Result: Dissolved \( \text{CO}_2 \) in the ocean can lead to ocean acidification.
- Diagram Representation: Although not explicitly shown, the ocean plays a crucial role in absorbing \( \text{CO}_2 \).

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Explanation of the Diagram

- Sunlight: Provides energy for photosynthesis in plants.
- Plants: Absorb \( \text{CO}_2 \) from the atmosphere and store carbon in their tissues.
- Animals (Sheep): Consume plants and release \( \text{CO}_2 \) through respiration.
- Decomposers: Break down dead organisms, releasing \( \text{CO}_2 \) back into the atmosphere.
- Factories/Power Plants: Emit \( \text{CO}_2 \) through the combustion of fossil fuels.
- Atmosphere: Serves as a medium for the exchange of \( \text{CO}_2 \) between all components.

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Final Answer

The task in the image is to identify the cycle being depicted. Based on the components and processes illustrated, the answer is:

$$
\boxed{\text{Carbon Cycle}}
$$

This cycle shows how carbon is continuously cycled through the environment, involving processes like photosynthesis, respiration, decomposition, and combustion.