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

2) The ocean covers about 71% of the Earth's surface and contains roughly 97% of the planet's water.

3) The concept of sovereignty refers to the supreme authority and power of a state to govern itself, make decisions, and control its own territory without interference from external forces.

4) The highest-grossing film of all time is "Avengers: Endgame," which has earned over $2.79 billion at the global box office.