Question

1)What are ox-box lakes and how are they formed?

2)What is a delta?

3) Give reason:Some rocks have a shape of mushroom.​

Answer 1

Answer:

1) An oxbow lake is a lake that forms when a meander in a river is cut off from the rest of the river. It is shaped like a crescent, or the bow of an oxen yoke. A river meanders because of obstacles and patterns of erosion and deposition of sediments.

2)A delta is an area of low, flat land shaped like a triangle, where a river splits and spreads out into several branches before entering the sea.

3)A mushroom rock, rock pedestal, or gour is a typical mushroom-shaped landform that is formed by the action of wind erosion. ... In some cases, harder rocks are arranged horizontally over a softer rock, resulting in such erosion.

Answer 2

1}What are ex bow lakes?

An ex bow lake is a crescent shaped lake which is formed when a meander gets cut off from the main river .

$Formation -$

1] As the river enters the plains it twists and turns forming large bends known as meanders .

2] Due to continuous erosion and deposition along the sides of these meanders the ends of these meanders loops come closer and closer .

3] In due course of time the meander loops cut off and form lakes called Ox bow lake .

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2}What is a delta?

-Delta is a triangular area of land of where a rivers before entering into the sea . The rivers leaves the sediments and this collection from all the mouths forms a Delta.

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3}Some rocks have a shape of mushroom as;

-The desert winds erode the lower section of the rock more than the upper part . Therefore,such rocks have narrower base and wider top .

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