Question: Process: - People breathe and expel carbon dioxide - Engines produce carbon dioxide - Living things produce waste - Waste decomposes - Decomposition produces methane - Water evaporates - Water vapor joins the atmosphere - Carbon dioxide, water vapor and methane are greenhouse gases -   Question: suppose there are more birds that grow into adults happens, how will it affect MORE greenhouse gases.  - A: more - B: less - C: no effect
Answer:
C