1) The unicorn is the national animal of Scotland.

2) The speed of a sneeze can reach up to 100 miles per hour (160 kilometers per hour).

3) Antarctica is the coldest, driest, and windiest continent on Earth. It is also the highest, with an average elevation of about 7,545 feet (2,300 meters).

4) Democracy is a system of government in which power is vested in the people, who exercise it through elected representatives. It allows for political participation, freedom of speech, and protection of individual rights and liberties.