1) Cyclones can cause widespread damage through high winds, heavy rainfall, and flooding. They can also generate tornadoes and trigger landslides.

2) The word "mountain" contains three vowels: O, U, and A.

3) The world's largest species of shark, the whale shark, can reach lengths of up to 40 feet (12 meters) and weigh over 20 tons.

4) The assassination of Archduke Franz Ferdinand of Austria in 1914 triggered the start of World War I.