question_answer 10)

(i)Some rocks have a shape of a mushroom (ii)Floodplains are very fertile (iii)Sea caves are turned into stacks. (iv)Buildings collapse due to earthquakes..

Answer:

(i)Some rocks have a shape of a mushroom because winds erode the lower section of the rock more than the upper pa.rt. Therefore, such rocks have narrower base and wider top (ii)Floodplains are very fertile because floods deposit layers of fine soil and other material. (iii)Sea caves are turned into stacks (wall like features) because erosion breaks the roof of the caves and only walls are left (iv)Earthquakes are sudden movements of the earth which cause mass destruction.