Geography

Kilimanjaro is a volcanic peak that is not extinct, but dormant.

Lumps of asphalt sometimes appear on the surface of the Dead Sea.

Along with its various tributaries, it forms the largest network of navigable waterways in Africa.

Death Valley National Park has more than a thousand plant species, among which twenty-three are endemic.

Geologically, Lake Victoria is relatively young, it formed about 400,000 years ago.

A cable car can transport the mountaineers half way to the top.

Etna also has its own legends. According to Greek and Roman mythology, the god Vulcan (gr. Hephaestus ) had his forge beneath Mount Etna.

The introduction of Nile perch into the lake ecosystem, eutrophication of the lake, and other changes have led to the extinction of at least 200 cichlid species in Lake Victoria.

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.

On March 15th, 1991, a series of earthquakes of increasing intensity started hitting the northwest region of Mount Pinatubo.