How does carbon cycle through Earth's systems?
A. As fossil fuels are burned, carbon dioxide is made available for
photosynthesis in animal cells. When the animals die, carbon is
released into the soil, and the animal remains form new fossil
fuels.
B. Animals absorb carbon dioxide through their skin. Dead animals
release carbon into the soil. Plants absorb the carbon from the soil
and release carbon dioxide during photosynthesis.
C. Plants absorb carbon dioxide through their leaves. Animals take in
the carbon when they eat the plants. Animals exhale carbon
dioxide. Dead plants and animals release carbon into the soil.
D. Photosynthesis releases carbon dioxide into the atmosphere.
Cellular respiration uses carbon dioxide.
Answers: 1
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