Less children are being born due to increased efforts to lower the CBR (crude birth rate) and improve contraceptive methods. This results in less children being born, meaning that the older people are increasing in dependency (because there's more older people in the older generations vs the newer)
The upliftment weathering hypothesis suggests that the formations of the uplifted terrains the global climate into an icehouse state and the main factor that influences the global state of the chemical weathering are the global rainfall and the high temperatures, like the rocks in the tropical areas, are exposed to the dry and hot weather conditions.
<u>Similar to that of the cold areas the rocks are exposed to the cold and first action and the interaction of the moisture contents that transform the minerals in the rocks. Which are ongoing processes through the impacts of the oxidation and hydrolysis.
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The formation of the acidic contents in the rocks ios created by the impacts of these temperatures on the rocks mass. The carbonization that is an atmospheric process of the addition to carbon contents to the air and impacts the limestone and the chalk rocks.
Mexico City is the location that has the highest population density. It is one of the most crowded cities in the world, so it is only natural that this is the correct answer here as well.