D. changes in temperature trends.
There are four major layers, all separated by temperature. Increasing or decreasing temperature of the gases in the layers keeps them separated.
Answer:
Escarpment.
Explanation:
Escarpment also known as scarp is a steep slope or cliff separating two relatively level regions
Carbon dioxide is added to the atmosphere by human activities. When hydrocarbon fuels (wood, coal, natural gas, gasoline, and oil) are burned, carbon dioxide is released.
I would pick IRRIGATED. Hope that helped !
<span>australia is quite flat, and is one of the world's largest producers of minerals. it also has a high number of animal species.
</span>