What is the process of denser crust sinking beneath less dense crust after collision called?

1. what other famous event was going in on africa in 1994? 2. why does the country of rwanda use francs as their currency? 3. when paul s neighbor (victor) gets attacked, what does paul do? why? 4. what was the significance of the phrase "cut the tall trees"? 5. when violence breaks out, who comes to ? who gets ? who does t get ? 6. when paul realizes no one is coming to the rwandan refugees, he tells them there is only one way for them to get . what is it? 7. what deal does george try to make with paul? 8. why didn t any foreign countries try to stop the hutus? 9. what event sparked the beginning of the genocide? who does that event get blamed on? 10. who was supplying the hutu army? 11. what did 19th century imperialism have to do with this 20 century genocide? 12. where did the classifications of hutu and tutsi come from in rwanda? 13. why are some people being and others are not? 14. if you were in paul s position, do you think your reaction would have been the same as his? explain. 15. how did the international community fail the people of rwanda? why were they so reluctant to act? what is our responsibility as global citizens in these kinds of events? how are events in rwanda and darfur conceded to 19th century imperialism?

Why isn't the balkan region good for farming? it has dry summers. it is far from the sea. its soil is not fertile. its terrain is mountainous. its winters are mild.

Based on current rates the earths human population is expected to grow how much by 2050