Question: Increased amounts of carbon dioxide in Earth's atmosphere may lead to global warming. What might global warming then lead to? More photochemical smog. Melting of the polar ice caps. A hole in the ozone layer. Less of a greenhouse effect

Global warming will lead to the melting of the polar ice caps.

Explanation:

Global warming is a natural process that has occurred numerous times throughout Earth's past. The climate naturally oscillates from one period to another and that is based on Earth's movement, tilt, axis, as well as volcanic activity, tectonic activity, the organisms, etc. In more recent times though there has been another additional factor, the human acticity, which has led to speeding up of the process of global warming because of the huge amounts of greenhouses that are released in the atmosphere.

With greenhouse gases pilling up in the atmosphere, the atmosphere is able to retain more and more heat. More heat in the atmosphere means an increase in global temperatures. The areas that will experience the most dramatic change will be the poles and their surroundings, because a large portion of the ice caps will melt, thus changing the landscape and making it unrecognizable. The huge amounts of ice that will melt will lead to change in the ocean currents and that will have a big effect on the global climate.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.