1) The destructive power of cyclones is often attributed to their storm surge, which is a rise in sea level caused by the strong winds and low atmospheric pressure.

2) The Amazon Rainforest, located in South America, is the largest tropical rainforest in the world, covering an area of approximately 5.5 million square kilometers (2.1 million square miles). It is known for its exceptional biodiversity and plays a crucial role in the global ecosystem.

3) The game of rugby originated at Rugby School in England and has since evolved into different versions, including Rugby Union and Rugby League.

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