What is one thing that the leaders of saudi arabia have not done with their oil revenues?

Summary of the impact of the physical environment on settlement patterns and economic activities for ukraine

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

What is unusual about the iraq mountains ,in spite of their old age?