I believe the answer is, Because all people experienced periods of gloomy weather before. From what I've learned i believe that's the answer. Hope I helped!
Is a summary of the text one of your choices? Use either sentences or phrases.
He's hoping to convey the differences and similarities of the German government from governments of the past since that is the purpose of making comparisons. This is for a better understanding of the successes and failures of the German government.
Bosniak people that were killed by bosnian serbs, part of an ethnic cleansing
