C. Using a specific model to prove the earth moving around the Sun.
Answer: A to be more specific about what government can do
Explanation:
People all over the nation, even the world, responded with donations of clothing, food, and shelter. Doctors, nurses and Clara Barton and the American Red Cross arrived to provide medical assistance and emergency shelter and supplies. The Johnstown Flood was the first major disaster served by the recently formed Red Cross. Doctors worried especially about diseases that might breed in the unclean water and decaying bodies of humans and animals.
Undertakers volunteered for the gruesome task of preparing over 2,000 bodies for burial. 700 of the victims could not be identified. They were buried together in a new cemetery built high above the town. Recovering the bodies took weeks and cleaning up debris took months. Five thousand homes had been destroyed, so many families lived in tents. During recovery and relief efforts the state of Pennsylvania put Johnstown under martial (military) law, since many of the towns leaders had perished in the flood. General Hastings took charge for several months, making sure relief supplies went to survivors who needed them and keeping the press from taking over the town.
D. The creation of Israel led to several series of conflicts between the Palestinians (the original inhabitants of the land) and the Jews (the newcomers). These conflicts have continued to the present day
nationalism, imperialism, militarism , and forming allies
