Answer: Carbon Dioxide
Explanation: Soil aeration is the process that provides the air to the plants and maintains the flow of oxygen and carbon dioxide gases. These are the two most vital gases for the life process of the soil to provide it to the plants and other micro organisms. It provides these gases so that there can be production in the plant through soil.
Layer G must be older than layer F, according to the law of superposition. So the answer is Paleozoic era, I believe.
the answer in my opinion would have to be B.
Answer:
A unique assortment of behaviors and beliefs that distinguish a society
