Answer:
The alliance system
Explanation:
German government's guarantee to offer aid to Austria-Hungary, and Russia's danger to counter if Austria-Hungary attacked Serbia made the alliance together framework and instrument for animosity. As proven by the evidence, the hostility between certain powers was uncontrollable therefore causing the outbreak of WW1.
Galileo Galilei rejected the idea of Geocentric View and supported Heliocentric View
It started a revolution around the world people started to think on thier own and this cause chaos scientists started to test and explain their theories this caused the church to revolt against the scientists, and when the church then found that they were wrong the people started to think about other things they were wrong about, this eventually causes the government to revolt against the church. People were now able to think on their own which is the main point.
i believe the answer is d im not really sure
