Answer:
Inventions like the airplane and machine gun
Explanation:
World War I was so deadly because all of the new weapons that were invented. New technology that was being invented such as machine guns and mustard gas made war deadlier than every war before.
The answer for this is "Compromise of 1850".
The Compromise of 1850 is a set of laws dealing with the issue of slavery. California was admitted as a free state, upsetting the groups in favor of slavery and satisfying those opposing it in the U.S senate. In Addition, California abolished the slave trade by entering the Union as a free (no slavery) state.
Gorbachev's best statement about perestroika is that without a perestroika, the cold war would simply not be complete. But the world could not continues to evolve, as it was, with a sharp threat of a nuclear war.
In order to reform the relaxed Soviet Union, the democratization of the Communist Party was promoted through the policy of Mikhail Gorbachev's party "perestroika" and "glasnost". Perestroika refers to the reconstruction of the political and economic system founded by the Communist Party.
Prestroika means reformation, and volume means openness. The openness is primarily reflected in relations with the West, which gave a major contribution to the end of the Cold War.
Answer:
weapons and war resulted in lots of death and it made polution
Explanation:
d. they built cities and fortresses on highlands of Andes Mountian
