Geography

K-Pop originated from South Korea.

The methane gas floats on the water's surface as many tiny bubbles. The density of the resulting gas-water mixture is much less than that of seawater. If a ship finds itself in such an area, due to the lower density, it quickly sinks below the actual sea surface, and the crew is unable even to make an emergency call. The ship sinks.

33 major rivers flow into the Gulf of Mexico.

Before the volcano eruption, an earthquake occurred. Scared inhabitants left the island just in time to avoid the worst.

The Congo Basin shelters all three subspecies of gorilla—the mountain gorilla, the eastern lowland gorilla, and the lowland gorilla.

Mount St. Helen is the youngest and the most active volcano of the Cascade Arc.

Researchers claim that the volcano's eruption in the 17th century BC and its collapse 300-400 m below the surface of the sea level caused a gigantic tsunami wave up to 200 m high.

Mount Fuji is open to climbers for two months only–from the beginning of July to the end of August.

It was landmarked by William Gosse, an Australian explorer, during his survey in 1873.

Oil and gas production causes serious water and land pollution.