1) The Southern Ocean surrounds Antarctica and is the coldest and least-visited ocean.

2) The world's oldest tree is believed to be a bristlecone pine named "Methuselah" in California, estimated to be over 4,800 years old.

3) The word "country" contains three vowels: O, U, and Y.

4) The impact of social media platforms on society and politics has been a subject of debate, including concerns about misinformation, privacy, online harassment, and the influence of these platforms on public opinion and democratic processes.