World Geography

Option: A
Explanation :A landlocked country is defined as a country that is completely surrounded by land. Some of these nations may have coastlines, but these are only on closed seas. Forty-nine – or about one-fifth of all of the countries in the world – are landlocked.
The largest landlocked country by population is Ethiopia, which has a population of over 101 million people. Vatican City is the smallest by population, with a total population of less than 1,000 people.

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Option: C
Explanation :A landlocked country is defined as a country that is completely surrounded by land. Some of these nations may have coastlines, but these are only on closed seas. Forty-nine – or about one-fifth of all of the countries in the world – are landlocked.
The largest landlocked country by population is Ethiopia, which has a population of over 101 million people. Vatican City is the smallest by population, with a total population of less than 1,000 people.

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Option: B
Explanation :A landlocked country is defined as a country that is completely surrounded by land. Some of these nations may have coastlines, but these are only on closed seas. Forty-nine – or about one-fifth of all of the countries in the world – are landlocked.
The largest landlocked country by area is Kazakhstan. The smallest by area is Vatican City. The largest landlocked country by population is Ethiopia, which has a population of over 101 million people. Vatican City is the smallest by population, with a total population of less than 1,000 people.

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Option: D
Explanation :A landlocked country is defined as a country that is completely surrounded by land. Some of these nations may have coastlines, but these are only on closed seas. Forty-nine – or about one-fifth of all of the countries in the world – are landlocked.
All of the nations in the world that are landlocked are:- Afghanistan, Andorra, Armenia, Artsakh, Austria, Azerbaijan,Belarus, Bhutan, Bolivia,Botswana, Burkina Faso, Burundi,Central African Republic, Chad, Czech Republic,Ethiopia,Hungary,Kazakhstan, Kosovo, Kyrgyzstan,Laos, Lesotho, Liechtenstein,Luxembourg,Macedonia, Malawi, Mali, Moldova, Mongolia,Nepal, Niger,Paraguay,Rwanda,San Marino, Serbia, Slovakia, South Ossetia, South Sudan, Swaziland, Switzerland,Tajikistan, Transnistria, Turkmenistan,Uganda, Uzbekistan,Vatican City,West Bank,Zambia, Zimbabwe.

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Option: A
Explanation :The Nile is credited as the longest river in the world having length of 6,695 km (4,160 miles) or some say 6,650 km (4,130 miles). Its main source is Lake Victoria in east central Africa.
the Nile is an international river shared by 11 countries in Africa. However, it is the main source of water in two countries Egypt and Sudan. The Blue and the White Nile are the two tributaries of the river with the latter having a greater length than the former. The source of the White Nile is not yet fully determined but is believed to be somewhere in Burundi or Rwanda. According to some reports, Lake Victoria is considered to be the source of the White Nile which is, in turn, fed by the Kagera River whose two major tributaries are the Ruvyironza and the Nyabarongo rivers of Burundi and Rwanda, respectively. The Kagera is formed at the confluence of these two rivers near the Tanzania-Rwanda border. The Blue Nile has a more defined origin in Lake Tana in Ethiopia. The two tributaries meet near the Sudanese capital of Khartoum. The Nile River’s final course is through Egypt before it forms a delta and drains into the Mediterranean Sea.

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Option: B
Explanation :The Amazon River in South America is the largest river by discharge volume of water in the world. Lenght 6,400KM, Length in miles 3,976, Discharge area 7,050,000 Km^2 , Average Discharge 209,000 m^3/s.
A recent 2014 study claims that the origin of the Amazon can be traced to the Cordillera Rumi Cruz from where Peru’s Mantaro River originates. This river then confluences with the Apurímac River (whose headwaters were earlier regarded as the source of the Amazon) and then other tributaries join the river downstream to form the Ucayali River which finally confluences with the Marañón River to form the main stem of the Amazon River.

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Option: C
Explanation :The Amazon River in South America is the largest river by discharge volume of water in the world. Lenght 6,400KM, Length in miles 3,976, Discharge area 7,050,000 Km^2 , Average Discharge 209,000 m^3/s.
A recent 2014 study claims that the origin of the Amazon can be traced to the Cordillera Rumi Cruz from where Peru’s Mantaro River originates. This river then confluences with the Apurímac River (whose headwaters were earlier regarded as the source of the Amazon) and then other tributaries join the river downstream to form the Ucayali River which finally confluences with the Marañón River to form the main stem of the Amazon River.

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Option: D
Explanation :River nile originates from Lake Victoria in east central Africa. Nile is the longest river in the world having length of 6,695 km (4,160 miles).
The Nile is an international river shared by 11 countries in Africa. However, it is the main source of water in two countries Egypt and Sudan. The Blue and the White Nile are the two tributaries of the river with the latter having a greater length than the former. The source of the White Nile is not yet fully determined but is believed to be somewhere in Burundi or Rwanda. According to some reports, Lake Victoria is considered to be the source of the White Nile which is, in turn, fed by the Kagera River whose two major tributaries are the Ruvyironza and the Nyabarongo rivers of Burundi and Rwanda, respectively. The Kagera is formed at the confluence of these two rivers near the Tanzania-Rwanda border. The Blue Nile has a more defined origin in Lake Tana in Ethiopia. The two tributaries meet near the Sudanese capital of Khartoum. The Nile River’s final course is through Egypt before it forms a delta and drains into the Mediterranean Sea. Therefore, River nile originates from Lake Victoria in east central Africa.

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Option: A
Explanation :The Grand Canal, known to the Chinese as the Jing–Hang Grand Canal, a UNESCO World Heritage Site, is the longest as well as the oldest canal or artificial river in the world. Starting at Beijing it passes through Tianjin and the provinces of Hebei, Shandong, Jiangsu and Zhejiang to the city of Hangzhou, linking the Yellow River and Yangtze River.
The Grand Canal’s total length is approximately 1,104 miles while its greatest height is at 138 feet at the summit of the Shandong Mountains. Following the invention of the pound lock in the 10th century, Chinese canals never had an issue with reaching higher elevations. The pound lock was constructed by Qiao Weiyue an engineer and government official between 960 and 1279 during the Song dynasty.

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Option: C
Explanation :A strait is a narrow body of water that connects two larger bodies of water.
The Strait of Hormuz is a strait between the Persian Gulf and the Gulf of Oman. It provides the only sea passage from the Persian Gulf to the open ocean and is one of the world’s most strategically important choke points. On the north coast lies Iran, and on the south coast the United Arab Emirates and Musandam an ex-clave of Oman. At its narrowest, the strait has a width of 21 nautical miles (39 km).

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