What is the total surface area of the Earth? [#834]

Earth's surface is the boundary between the atmosphere, and the solid Earth and oceans. Defined in this way, Earth's shape is an idealized spheroid – a squashed sphere – with a surface area of about 510 million square km (197 million sq mi).

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Earth's surface is the boundary between the atmosphere, and the solid Earth and oceans. Defined in this way, Earth's shape is an idealized spheroid – a squashed sphere – with a surface area of about 510 million square km (197 million sq mi).

The Belgian franc was the currency of the Kingdom of Belgium from 1832 until 2002 when the Euro was introduced. It was subdivided into 100 subunits, each known as a centiem in Dutch, or centime in French and German.

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The Belgian franc was the currency of the Kingdom of Belgium from 1832 until 2002 when the Euro was introduced. It was subdivided into 100 subunits, each known as a centiem in Dutch, or centime in French and German.

Outer Core The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

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Outer Core The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

Fossils are the preserved remains or traces of ancient plants, animals, and microorganisms. They provide valuable information about the history of life on Earth, including evolution, extinction, and environmental changes.

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Fossils are the preserved remains or traces of ancient plants, animals, and microorganisms. They provide valuable information about the history of life on Earth, including evolution, extinction, and environmental changes.

Kaziranga National Park in Assam, India is approximately 430 square kilometers. It's located between the Brahmaputra River to the north and the Karbi Anglong hills to the south, and is known for its tall elephant grass, marshland, and tropical moist broadleaf forests. The park was established in 1905 as the Kaziranga Proposed Reserve Forest and declared a national park in 1968 under the Assam National Park Act. It's also a UNESCO World Heritage Site.

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Kaziranga National Park in Assam, India is approximately 430 square kilometers. It's located between the Brahmaputra River to the north and the Karbi Anglong hills to the south, and is known for its tall elephant grass, marshland, and tropical moist broadleaf forests. The park was established in 1905 as the Kaziranga Proposed Reserve Forest and declared a national park in 1968 under the Assam National Park Act. It's also a UNESCO World Heritage Site.

To be certified

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To be certified

According to the 2011 Census, approximately 61.47% of the Assam population follows Hinduism.

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According to the 2011 Census, approximately 61.47% of the Assam population follows Hinduism.

The Vatican City is the least populated country in the world, with a population of around 800 people. It is also the smallest country in the world by size, covering 0.44 square kilometers. The Vatican City is a city-state surrounded by Rome, Italy, and is the headquarters of the Roman Catholic Church.

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The Vatican City is the least populated country in the world, with a population of around 800 people. It is also the smallest country in the world by size, covering 0.44 square kilometers. The Vatican City is a city-state surrounded by Rome, Italy, and is the headquarters of the Roman Catholic Church.

Bakhtiar Khilji's invasion of Assam took place in 1206 CE. This invasion, though initially successful in some areas, ultimately ended in failure for Khilji and his forces. He was defeated and forced to retreat.

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Bakhtiar Khilji's invasion of Assam took place in 1206 CE. This invasion, though initially successful in some areas, ultimately ended in failure for Khilji and his forces. He was defeated and forced to retreat.

Mount Elbrus is considered the highest mountain in Europe, at 5,642 meters (18,510 feet) above sea level. It's located in the Caucasus Mountains in southern Russia. Mount Elbrus is a dormant volcano that attracts many mountaineers and hikers.

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Mount Elbrus is considered the highest mountain in Europe, at 5,642 meters (18,510 feet) above sea level. It's located in the Caucasus Mountains in southern Russia. Mount Elbrus is a dormant volcano that attracts many mountaineers and hikers.

The Himalayas are a crescent-shaped mountain range that stretches for over 2,500 kilometers (1,550 miles). The range varies in width from 350 kilometers in the west to 150 kilometers in the east.

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The Himalayas are a crescent-shaped mountain range that stretches for over 2,500 kilometers (1,550 miles). The range varies in width from 350 kilometers in the west to 150 kilometers in the east.