Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall). In both cases, the soft rock erodes, leaving a hard ledge over which the stream falls
Ephemerals - wildflowers and weeds
When a person have a front lobe damage in the brain, it is most likely that the person would experience memory loss. It is because the frontal lobe is the one responsible in the memory, motor function and the behavior of a person in terms of social and sexually. When she has frontal lobe damage, the correct choice would be she is going to experience memory loss because the frontal lobe controls or stores the memory of a person.
Step 1. Find the streams width
Step 2. Find the average velocity of the stream
Step 3. Calculate the streams discharge (Multiply the cross-sectional area (Feet)² from Step 1 by the corrected average stream velocity (Feet/Second) from Step 2.)
Those are the step on how to do it
Hope this helps :)