Question

give the reasons for the following​

Answer 1

Answer:

1. Because the winds erode the lower section of the rock more than the upper part. 

2. Because they are formed on the flooding of rivers, by the deposit of fine soil layers and other material called sediments along the banks of the river.

3. Because Increase in the cavities of the sea caves and the erosion of the roof of the sea arches.

4. Because of generation of waves that propagate through the soil and create movement at the building’s foundation.

Explanation:

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Answer 2

Explanation:

1.Some rocks have a shape of a mushroom. Answer: Because the winds erode the lower section of the rock more than the upper part. Flood plains are very fertile. Answer: Because they are formed on the flooding of rivers, by the deposit of fine soil layers and other material called sediments along the banks of the river.

2.When it floods, it deposits a layer of fine soil, rich mineral salts, nutrient-rich silt, sediment, and distribute it across a wide area. These sediments make the soil very much fertile and lead to the formation of a very flat fertile flood plain.

3.They are called sea caves. These cavities become bigger and bigger and a time comes when only roof of the caves remain to form sea arches. Further erosion breaks the roof and only walls are left. ... In this way, sea caves are turned into stacks.

4.Most collapses that occur during earthquakes aren't caused by the earthquake itself. Instead, when the ground moves beneath a building, it displaces the foundation and lower levels, sending shock waves through the rest of the structure and causing it to vibrate back and forth.

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