Animals, including humans, take in o2, and breath out co2 in respiration. increasing the population leads to less o2 and more co2 in the atmosphere. is this a positive feedback loop, negative feedback loop, neither, or no answer provided?

Negative feedback loop

Explanation:

For cellular respiration, almost all the living cells require O₂ (oxygen) and release CO₂ (carbon dioxide). The same CO₂ is used in the photosynthesis by chlorophyll-containing cells and O₂ is released in the process as a byproduct. Increasing population require more oxygen O₂ for the cellular respiration But reducing the number of plants due to deforestation and urbanization, the concentration of CO₂ increasing in the atmosphere.

Thus increasing the population leads to less O₂ and more CO₂ in the atmosphere is a negative feedback loop.

the only other powers were germany russia and uk and they were too busy fighting each other wearing each other down   that the us was becoming strong and they were becoming weaker