Most of Africa is hot, so I'd say climate change
<span>Despite his personal opposition to slavery, when President Abraham Lincoln took office in 1861 he insisted that his constitutional duty was to keep the nation together, not to abolish slavery. He conducted the first year of the war with the goal of reuniting the Union, but wartime events, including heavy military losses and the many slaves who escaped behind Union battle lines, forced him to contend with the issue of slavery. He issued a preliminary Emancipation Proclamation on September 22, 1862 and the final version on January 1, 1863, fundamentally changing the meaning of the war.</span>
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.
D all 3 of them would be causes
