River Landforms (Upper, Lower & Middle)

Question 1

describe the formation of Levees

Answer 1

during a flood the thickest and corsets sediments rise and are deposited on the rivers edge , natural levees built up over many floods

Question 2

describe the formation of deltas

Answer 2

where the fresh water from the river meets the salt water from the sea

Question 3

describe the formation of meanders

Answer 3

the water on the outside of a channel moves quicker eroding the river bank, on the inside there is less energy causing deposition

Question 4

describe the formation of ox bow lakes

Answer 4

meander bends more and more, until the neck. gets too thin and the meander is cut off, the water stops using the corner and uses quicker route. after a long time the oxbow lake dries up

Question 5

describe the formation of waterfalls

Answer 5

hard rock above soft rock, soft rock erodes easier leaving hanging hard rock which falls and waterfall moves backwards creating a gorge

Question 6

describe the formation of a gorge

Answer 6

a valley with steep horizontal sides created by a gorge