The Ice Ages shaped and sculpted the face of the Earth. Continents that were once connected by land bridges had shifted and separated during the Ice Ages. Therefore without the Ice Ages, Earth would look significantly different, and some of the natural beauties like Niagra Falls would not exist.
Answer:
Explanation:
A is not correct as Botswana is one of the most stable democracies in the world, usually ranked on the 1st or 2nd place in Africa.
B is also wrong as this country is also among most stable governments on the continent. Among first ten, actually.
C is also wrong, because Kenya is somewhere in the middle.
D is correct as Central African Republic is at the bottom of the ladder, together with Somalia and Sudan.
Global warming is a slow increase in the overall temperature of the earth's atmosphere generally created by the greenhouse effect. This effect is caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.