Answer:
After the build up of anxiety from Nationalism, Imperialism and Militarism, the Powers were worried about being attacked by each other.To counter this alliances were formed. Germany made a mystery alliance with Austria-Hungary in 1879. The Alliance System was certainly a prominent reason of WWI.
Explanation:
the answer is warmer-than-normal waters reach south america
I would say grassland. I would say so because if you look at the options you can tell that arctic isn´t right because it´s ice and snow, tropical rain forest isn´t right because a RAIN forest gets lots a RAIN hint hint, and a desert, that does´nt set any kind of rain, but its sand not soil. For 4 its makes sense because during the summer there can be rain but little rain at little rain at all.
Hope I helped!
C.high pressure areas to low pressure areas
