B) German reunification and the collapse of the soviet union
hope this helps
Its true just like the person on top of me said
Your answer is D :
Millions of years ago, the area pictured was the site of a mountain range and today, it is seen that only a few plateaus remain. This scenario proves that nothing is permanent in this world not even the nature because the natural resources such as plateaus are subject to change due to the changing weather and climate of the earth. These two factors caused occurrences such rain, floods, typhoons to deform and even destroy and natural resources. Some other resources are completely washed out while others transform into a different kindo of a resource since the earth moves, the plates deep down also moves resulting to unpredictable changes in the surface of the earth.
