What is the gradient? How does it relate to the energy of a stream? How does it relate to erosion?
a) The gradient is the depth of a river. It is directly proportional to stream energy and inversely proportional to erosion.
b) The gradient is the slope of a river. It is directly proportional to erosion and inversely proportional to stream energy.
c) The gradient is the width of a river. It is directly proportional to both stream energy and erosion.
d) The gradient is the rate of flow in a river. It is inversely proportional to both stream energy and erosion.