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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 third longest navigable river in the world ?

Yangtze
Murray
Parana
Volga

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It is the longest river in Australia with a length of 2,508 kilometres. It spans three states which are Victoria, New South Wales and South Australia.

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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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Studying the flows of rivers is called ?

Piology
Geology
Hydrology
Psycology

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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 starting point of Mississippi river ?

Lake Itasca
Lake Victoria
Altai Mts.
Guinea

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Being a small glacial lake, Lake Itasca is the starting point of Mississippi river. It has a 1.8 square miles area and is located in Itasca State Park. Mississippi river is the principal river of the United States which is 3,780 km long, exceeded in length only by the Missouri River, the chief of its numerous tributaries. The rive makes Mississippi River Delta at the Gulf of Mexico.

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If a river has a wide mouth then this is known as what ?

Gorge
Meander
Estuary
Lock

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Estuary is a enclosed body of water where water from rivers flows into the ocean, mixing with the seawater.

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A bend in a river in known as

Gorge
Meander
Estuary
Lock

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A meander a bend in watercourse or river.

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The flat land of the river valley close to the river banks in known as

Gorge
Meander
Estuary
Flood Plain

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The point where a road goes through a river is known as

Weirs
Dock
Ford
Discharge

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