The Zagros Mountains are a chain of mountains shared by Iran, Iraq and Eastern Turkey - so actually both A) and C) are correct options. They are located to the north of the area between the Tigris and Euphrates which formed a part of the Fertile Crescent.
I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question and hope that it comes to your help. It is a true fact that prior to the development of new extraction methods, bitumen or oil sands was not considered part of the world's oil reserves.
<span>Similar to how sand sinks to the bottom of a river, during the formation of the planet, when earth was still a hot ball of liquid rock and minerals; the most dense materials would make their way to the bottom, while less dense materials (like liquid rock) would "float" on the top of this growing ball of liquid metal. As iron was (and is) plentiful, and quite a dense mineral (which is why it blocks x-rays), it makes up the majority of the Earth's core. So I would say A.</span>
what can be formed are mountain ranges called oceanic spreading ridges. While the process volcanic, volcanoes, and earthquakes are not as violent as a convergent
The Danube forms a part of the border between Serbia and Romania.
It later also forms a part of the border between Romania and Bulgaria and before also Serbia and Croatia.
It also passes through 4 European capitals: Bratislava, Vienna, Budapest and Belgrade
