Question

How does a stream typically change as it flows from its headwaters to its mouth?

Answer 1

Answer:

D. Gradient decreases, discharge increases.

Explanation:

• As steam is a body of water that carries rock particles and dissolved ions,  discharge is measured in terms of volume/time (m3/sec).  So when a river discharges its flow from a headwater to its mouth the velocity increases in the downstream direction.

• Thus the river load-carrying capacity increases downwards and so does the discharge rate. The discharge rate can also be influenced due to the rainfall patterns, volume of water and velocity of flow.

• Rock types also impact the streamflow if it is a porous rock, the surface will absorb more of moisture content and comparative more will be the water penetration towers the mouth of the flow.