Answer:
Secondary waves another name is S-waves
Explanation:
The answer is D. The question asks how different cultures influenced each other so that rules out options A & B. Option C is about the environment being destroyed, and that really has nothing to do with foreign influence.
D. single- and simple multi-celled organisms
Although more complex animals like invertebrates and multi-celled organisms began to appear, it was very late compared to the original, simpler organisms for which the Precambrian time is characterized by.
The correct answer is: A: The first republic to secede from county of Yugoslavia in 1990s was Slovenia. In 25 June of 1991, Slovenia declared independence, and it was internationally recognized as an independent state in 1992 by many European countries. Slovenia and Macedonia separated with out conflicts, but separation of Croatia and Bosnia and Herzegovina resulted in civil war on their territories. Today, there is six sovereign states, which were part of Yugoslavia after the WW II: Serbia, Slovenia, Croatia, Bosnia and Herzegovina, Montenegro and Macedonia.