Erosion

Question 1

What is headward erosion

Answer 1

makes a river longer. Happens near a river’s source as throughflow and surface runoff causes erosion at the point the water enters the river channel.

Question 2

What is vertical erosion

Answer 2

deepens river channels. Happens in the upper stage of the river

Question 3

What is lateral erosion

Answer 3

makes the river wider. Happens in the middle and lower stages of a river