Give reasons. (i) Some rocks have a shape of a mushroom. (ii) Flood plains are very fertile. (iii) Sea caves are turned into stacks. (iv) Buildings collapse due to earthquakes.
Answers
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) 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
Answer:
i) In desert the winds blow carrying sand which cut the rock from bottom during storms so it is shaped as mushroom.
ii)Flood plains are fertile because during floods rivers bring down the alvilluvial soil which makes it fertile
iii)
iv)Building collapse due to earthquakes because of the vibration coming from earth shakes the building and as they are stable monument when vibrates cause it to collapse.