71.
What is the main factor that influences the velocity of river flow?

72.
A meander that gets cut off from the main river forms what feature?

73.
What is the shape of a youthful river valley?

74.
What geomorphic process involves the downward movement of soil due to gravity?

75.
Which glacial feature is formed by deposition at the end of a glacier?

76.
Which of the following is a depositional landform created by glaciers?

77.
Which feature results from chemical weathering of limestone?

78.
What causes exfoliation in rocks?

79.
What is the general direction of sediment transport in a longshore current?

80.
What is the flat-topped, steep-sided hill left behind after erosion of a plateau called?