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Multiple Choice
Which parts of the biodome contain carbon?
A
Only the atmosphere
B
Only plants and animals
C
All living organisms, the atmosphere, and soil
D
Only water bodies
Verified step by step guidance
1
Understand the concept of the carbon cycle: Carbon is a fundamental element found in all living organisms and is cycled through various components of the biosphere, including the atmosphere, soil, water bodies, and living organisms.
Identify the role of the atmosphere: Carbon exists in the atmosphere primarily in the form of carbon dioxide (CO2), which is used by plants during photosynthesis.
Consider living organisms: Carbon is a key component of organic molecules such as carbohydrates, proteins, lipids, and nucleic acids, making it present in all plants, animals, and microorganisms.
Examine the soil: Carbon is stored in the soil as organic matter (e.g., decomposed plants and animals) and inorganic forms (e.g., carbonates).
Include water bodies: Carbon is dissolved in water bodies as carbon dioxide and bicarbonates, and it is also present in aquatic organisms. This demonstrates that carbon is distributed across all these components of the biodome.