Explanation:
Islamic mathematicians such as Al-Khwarizmi, Avicenna and Jamshīd al-Kāshī made advances in algebra, trigonometry, geometry and Arabic numerals. Islamic doctors described diseases like smallpox and measles, and challenged classical Greek medical theory.
Answer:
Correct answer is C. The resignation of Mikhail Gorbachev
Explanation:
Option A is not correct as this treaties are important for the limitation of weapon arsenal, but didn't lead to end of Cold War.
B is not correct as the defeat of US in this war showed that Communism is still alive.
C is correct as after his removal Soviet Union was dissolved, which led to end of Cold war.
D is not correct as China was opened towards the west even during the Cold war.
It should be truefor sure
nullification rather than support secession
An advantage is that it takes way less time to do it than to create a formal treaty since the President would not need consent from the congress for an executive agreement. A formal treaty can, however, last longer because it is more difficult to cancel, so if it's good, then it is also safer for it to be formal.
