Give reason: - a) Some rocks have a shape of mushroom.
b) Flood plain are very fertile.
Answers
Explanation:
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.
Answer:
In deserts, one can see rocks in the shape of a mushroom—with a narrower base and a wider top. These are known as mushroom rocks. Such rocks are formed when the winds erode the lower section of a rock more than the upper part.Wind erosion is particularly common in the desert areas.
Flood plains are formed as a result of the depositional activity of rivers. Rivers carry along with them eroded material like fine soil and sediments. When a river overflows its banks, it deposits the eroded material and creates flood plains. The deposited material is rich in silt or alluvium and makes the land fertile.