Question

what does not produce carbon dioxide?
plants decaying
animal respiration
photosynthesis
burning fossil fuels

Explanation:

To determine which process does not produce carbon dioxide, we analyze each option:

• Plants decaying: Decomposition of plants involves microbial activity that releases CO₂.
• Animal respiration: Animals take in O₂ and release CO₂ during respiration.
• Photosynthesis: Plants use CO₂, water, and light to produce glucose and O₂, so it consumes rather than produces CO₂.
• Burning Fossil Fuels: Combustion of fossil fuels (like coal, oil) releases CO₂.

So, photosynthesis is the process that does not produce carbon dioxide.

Answer:

C. Photosynthesis