Question

which processes result in the release of carbon? select three options. animals break down food molecules to obtain energy. the remains of producers are broken down by decomposers. the remains of consumers are broken down by soil decomposers. producers take in carbon dioxide. producers make sugars and starches.

Explanation:

• Animals break down food molecules to obtain energy: This is cellular respiration, which releases carbon dioxide ($CO_2$). The chemical formula for cellular respiration is $C_6H_{12}O_6+6O_2

ightarrow6CO_2 + 6H_2O+energy$.

• The remains of producers are broken down by decomposers: Decomposers (like bacteria and fungi) decompose organic matter. Through the process of decomposition, carbon that was stored in the producer's body (in the form of organic compounds) is released as $CO_2$.
• The remains of consumers are broken down by soil decomposers: Similar to the decomposition of producers, when consumers die, decomposers break down their organic - rich remains. Carbon stored in the consumer's body (from the food they ate) is released as $CO_2$ during decomposition.
• Producers take in carbon dioxide: This is part of photosynthesis ($6CO_2+6H_2O

ightarrow C_6H_{12}O_6 + 6O_2$), which absorbs $CO_2$ from the atmosphere, not release carbon.

• Producers make sugars and starches: This is also part of the photosynthesis process (sugars and starches are organic compounds formed from the fixation of carbon during photosynthesis), which sequesters carbon, not release it.

Answer:

Animals break down food molecules to obtain energy, The remains of producers are broken down by decomposers, The remains of consumers are broken down by soil decomposers.