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Which is the longest river in the USA ?

Yukon
Amazon
Mississippi
Missouri

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With a length of 3,767 km , Missouri is the longest river in the USA and 15th longest in world. The river flows east and south where it meets Mississippi River. The river was formed around 115,000 years ago. The drainage area of Missouri is 529,350 square miles which is one-sixth of the entire United States.

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What is brackish water ?

Complete fresh water
Complete salt water
Mix of fresh and salt water
Mix of water from Chanel, Sea and River

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Brackish water is a mixture of salt water and fresh water. This water can be found where rivers meet the sea.

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Which is the uppermost zone at the source of the river ?

Crenon
Rhithron
Potamon
None

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The crenon is the uppermost zone at the source of the river. The eucrenon and hypocrenon are further parts of crenon. Eucrenon is known as spring or boil zone and hypocrenon is known as brook or headstream zone. These 2 areas are characterized by slow moving water, reduced oxygen content and low temperatures.

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Which is the most polluted river in world according to WWF's Global Freshwater Programme ?

Citarum
Ganges
Yangtze
Salween-Nu

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Citarum River is the third longest river in Java. Asian Development Bank called this river the world's dirties and approved a loan of $500 million for cleaning up in december, 2008.

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Which of the following river flows in India, Bangladesh and China ?

Indus
Ganges
Brahmaputra
Kaladan River

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About 1,800 miles (2,900 km) long, the Brahmaputra is an important river for transportation. It is counted in one of the major rivers of Asia.

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The given Si-o-se Pol Bridge crosses which river ?

pol_bridge.jpg
Mellat Bridge
Zayandeh
Thames
Isfahan

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Zayanderud river is the river flowing in Iran. Having a basin area of 41,500 square kilometres, the river is the source of life for central Iran. The above bridge is one of the most famous examples of Safavid bridge design.

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Which is the longest river of Europe ?

Volga_river.jpg
Danube
Volga
Ural
Don

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Volga River is the longest river of europe as well as the largest river if we consider its discharge. Many people consider it as the national river of Russia as it flows through 11 largest cities of russia including the capital Moscow.

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The bottom of the river channel is called

Bank
Duel
Heis
Bed

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Which river of Northern China is also called the Yellow River ?

Huang He
Tang pho
Potomac
Zing Hu ji

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It is the principal river of northern China and nation's second longest river with a length of 3,395 miles. It is also the second longest river in Asia. One more thing to note is that Yellow River's basin is known as the birthplace of ancient Chinese civilization.

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What river was the basis of early civilization in Egypt ?

Tiber
Colorado
Potomac
Nile

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