1) The Great Rift Valley is a geological feature that stretches over 6,000 kilometers (3,700 miles) from Lebanon to Mozambique. It is known for its diverse landscapes, including deep lakes, volcanic mountains, and fertile valleys, and is considered a significant site for the study of Earth's tectonic activity.

2) The corpse flower, or titan arum, is known for its unpleasant smell, often compared to that of rotting flesh.

3) The word "forest" contains two vowels: O and E.

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