Answer:
Waterfalls are created when the riverbed changes suddenly from hard rock to soft rock.
Explanation:
Because the rock is soft, the water can cut into it and start to wear it down. As this happens, waterfalls can form.
Answer:
The answer is below
Explanation:
The cause for an increase in runoff can be many, some of which are:
1. Increase in the level of saturation of the ground
2. Decrease in the level of the porosity of the ground.
3. Decrease in the permeability of the ground.
4. When rainfall surpasses a soil's infiltration capacity
The cause for an increase in infiltration can be many, some of which are:
1. Reduction in the level of saturation of the ground
2. Rise in the level of the porosity of the ground.
3. Rise in the permeability of the ground.
4. Rise in the level of aggregation and soil structure caused by the presence of a high quantity of organic content.
