1) The Rocky Mountains, also known as the Rockies, extend from Canada through the United States, offering stunning landscapes and outdoor recreational opportunities.

2) The process of nuclear fusion powers the sun and other stars, fusing hydrogen atoms together to form helium and releasing vast amounts of energy in the process.

3) Male seahorses are the ones who give birth to their offspring.

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