D because Africa is known for its abundance in raw materials like the animals, gold, etc.
The Danube rises in Germany's Black Forest, flows through the heartland of Austria, forms the border with Austria and Slovakia, then Slovakia and Hungary, before flowing through Hungary, into Croatia and Serbia, to then form the boundary between Serbia and Romania, then Romania and Bulgaria, where it finally empties if that helps
To perform well in the main important wars.
The answer is A. Fossils .
Enslaved workers harvest crops on plantation which helped the south's agricultura based economy
