Answer:
The answer is A) There are hundred of ethnic groups and more than a thousand languages are spoken
Explanation:
Well, technically, this is false. The Test Ban Treaty of 1963 prohibited nuclear weapons testing in the atmosphere, in outer space, and under water, but it didn't ban testing underground. However, it does prohibit nuclear explosions underground if they cause "radioactive debris" and contaminate the living surroundings.
Answer:
Correct answer is criticism of government officials.
Explanation:
Unlimited freedom of the Russian press is not correct because although certain freedom was introduced press was still controlled by the country.
Second option is correct because Gorbachev who ruled back then in Soviet Union believed that institutions need to be more transparent and that officials are not allowed to do everything they want.
Third option is wrong because of similar reasons as the first one.
Fourth is not correct although period of Stalin's reign came into spotlight, and many things changed in contrast to that.