Answer:
sorry, don't know the answer
Answer:
The proportion of oxygen went up because of photosynthesis by plants. The proportion of carbon dioxide went down because: it was locked up in sedimentary rocks (such as limestone) and in fossil fuels. it was absorbed by plants for photosynthesis.
Explanation:
Answer:
Answer and Explanation: Sound travels faster in a warm room because the molecules are moving faster.
What are you talking about
