By convention, the line of demarcation between Western Asia and the European part of the ‘supercontinent’ of Eurasia, is along the Ural Mountain range, the Ural River, the northern slopes of the Caucasus Mountains, and the Turkish Straits.

Ural Mountains, also called the Urals, Russian Uralskie Gory or Ural, mountain range forming a rugged spine in west-central Russia and the major part of the traditional physiographic boundary between Europe and Asia.

As we have just discovered, Russia is geographically divided into two parts: European Russia and Asian Russia. Asian Russia consists of Western Siberia, Eastern Siberia and the Far East.

Yet, somewhat bizarrely, more Russians live in the European part of the country than the Asian part. The simple answer is that geographically, the Ural Mountains are used to mark the border between Asia and Europe.

Islam is Russia’s second most widely professed religion after Christianity. Russia has the largest Muslim population in Europe; and according to US Department of State in 2017, Muslims in Russia numbered or 10% of the total population.

The Indian Ocean has been known by its present name since at least 1515 when the Latin form Oceanus Orientalis Indicus (“Indian Eastern Ocean”) is attested, named for India, which projects into it.

In terms of geography, seas are smaller than oceans and are usually located where the land and ocean meet. Typically, seas are partially enclosed by land. Seas are found on the margins of the ocean and are partially enclosed by land. Seas are smaller than oceans and are usually located where the land and ocean meet.

Well, these lakes and rivers form when seawater seeps up through thick layers of salt, which are present beneath the seafloor. The dissolved salt makes the water denser, and because it is denser than the water around it, it will settle into the depressions, forming a river or lake.

Underwater currents can form in lakes, rivers and oceans, and there are many reasons why they happen. Some ocean currents are very large, and the biggest one – called the “global conveyor belt” – moves water very slowly all the way around the world.

The Nautilus exploration team came across a brine pool last night. Like underwater lakes, brine pools are the product of sub-seafloor salt deposits left behind by previous oceans which dissolve up through the salt tectonics.

The world’s largest waterfall is in the ocean beneath the Denmark Strait. But how can there be waterfalls in the ocean? It’s because cold water is denser than warm water, and in the Denmark Strait, southward-flowing frigid water from the Nordic Seas meets warmer water from the Irminger Sea.

Denmark Strait cataract

Angel Falls

Hamilton

List of waterfalls

• Angel Falls, Venezuela – highest in the world at 979 m (3,212 ft) tall.
• Kalandula Falls, Angola.
• Boyoma Falls, Democratic Republic of the Congo.
• Tagbo Falls, Ghana.
• Maletsunyane Falls, Lesotho.
• Ouzoud Falls, Morocco.
• Lamadaya falls in Sanaag, Somalia.
• Tugela Falls, South Africa.

Yosemite Falls

When crews shut down the falls in 1969, they found two bodies and millions of coins, most of which were removed. (As were the human remains, of course.) But in the last 50 years, tourism at Niagara has grown wildly.

To qualify as a waterfall, one segment of the falls must be at least five feet high. Most generally accepted true waterfalls must be located on a river, creek, or stream that provides a source of water at least annually. Most waterfalls have a significant amount of water flowing over boulders or plunging down a cliff.