It is caused by the Earth's gravity.
Gravity.
spring
spring
Water always flow from a higher elevation to a lower elevation.
The xylem tube carries the water from the roots to all parts of the plant, from bottom to top.This works because1 the water evaporates out of the leaves and so the water pressure causes the water to flow upwards.2 if the other parts of the plant have a lower concentration of water in them, the water will flow into them through osmosis. (water flowing from a region of high concentration to a region of lower concentration through a semipermeable membrane like the plant cells.)The phloem carries food from the leaves (and other food producing parts of the plant) to the rest of the plant, from top to bottom.
A waterfall is a steep fall or flow of water.
The lower region will flow to the higher region as much as possible. The two sides will become equal to each other.in this process.
A waterfall happens when a flow of water suddenly drops to a lower level.
Lower Egypt, in the sense that is flowing downstream, and here, the flow is from south to north.
When it is made to flow from higher level to lower level, the water can create energy.
Because water has lower viscosity (resistance to flow) than syrup does.
to reduced the back flow of water because when water comes out from the runner the pressure is lower then the atmospheric pressure due to this back flow is generated.
Depends on the size and the quantity of the mountains in the region and also on the kind of vegetation on them. Concerning to the water flowing it is very important to the environment that mountains exist over there, because the water from the rains that flow down the mountains keeps the rivers and brooks flowing nicely.