Geography

As a result of the eruption and the arrival of Typhoon Yunya, over 800 people lost their lives.

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.

Population density in the Sahara is low, at one person per km2.

The water of Malawi Lake is alkaline (pH 7.7-8.6).

The Thames is the longest river in England with a length of 346 km.

It is famous for “Mike the Headless Chicken Day.”

At the beginning of the 20th century, many world powers were interested in the Galapagos Islands.

According to the U.S. Geological Survey, most of the volcano cone is relatively young and was formed over the last 2,200 years.

The River Thames was a popular inspiration for various artists, including Claude Monet, Camille Pissarro, and Kenneth Grahame.

The Negev is part of the subtropical desert belt of the Northern Hemisphere.