1) The word "cheese" contains three vowels: E, E, and E.

2) Mountains are important water sources, as they capture and store precipitation, feeding rivers and supporting ecosystems downstream.

3) The Eiffel Tower can be 15 cm taller during the summer due to thermal expansion.

4) The #MeToo movement, originating in 2006 and gaining widespread attention in 2017, raised awareness about sexual harassment and assault, encouraging survivors to share their experiences and promoting discussions on consent and gender equality.