Give answers to all questions from 1-50

Here are the answers to questions 48, 49, and 50:

48. The Cuban Missile Crisis of October 1962 was peacefully resolved when

• A: the USSR agreed to withdraw its missiles from Cuba in exchange for a US pledge not to invade Cuba and a secret withdrawal of US missiles from Turkey.

The resolution involved a public agreement for the USSR to remove missiles from Cuba in exchange for a US pledge not to invade Cuba, and a secret agreement for the US to remove its missiles from Turkey.
The correct answer is $\boxed{\text{A}}$.

49. The collapse of the Soviet Union in December 1991 was most directly triggered by the

• A: failed August 1991 coup against Gorbachev and the subsequent declarations of independence by Soviet republics.

The failed coup significantly weakened the central Soviet government and accelerated the declarations of independence by various republics, leading directly to the dissolution of the USSR.
The correct answer is $\boxed{\text{A}}$.

50. A persistent criticism of the structure of the United Nations Security Council in the 21st century is that it

• A: does not adequately reflect contemporary global power realities, particularly the under-representation of Africa, Latin America and Asia.

The Security Council's permanent members (P5) reflect the post-World War II power structure, which many argue does not accurately represent the current global distribution of power and influence, leading to calls for reform.
The correct answer is $\boxed{\text{A}}$.