What is the place where a river meets an ocean called? | Yahoo Answers
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. The line of a coast - a coastline - is sometimes interrupted by a river flowing into the sea. This part of the coast, or the river, is called an estuary. An estuary is. It is a great sign as God told us about an existing scientific fact between the river and sea in the area called downstream (which is the mouth of.
Some rivers flow from hills where there is no snow, but lots of rain.
Some rivers only flow after there has been rain near the head water. The headwaters of the Arkansas River have rapids. Waterfalls are most often found in a young river. This river in Northern Australia only runs after heavy rain. The middle part of a river[ change change source ] The middle part of a river is called a mature river.
A mature river makes a riverbed that is U-shaped. It might be very deep and run fast. It sweeps over small rocks and boulders, and makes big turns around hills and mountains.
River - Simple English Wikipedia, the free encyclopedia
It is much wider than a young river, but not as wide as an old river. To cross over a mature river, people use bridges. Many cities and towns are built on the banks of mature rivers. Many farms that keep animals such as dairy cowshorses and sheep are along mature rivers because the animals can drink from the river every day. Clearwater River in Alberta is a "mature river". The Severn River flowing through farmland. The Rhine River valley has many towns.
The city of Florence was built beside the Arno River. The last part of a river[ change change source ] A river usually ends by flowing into an oceana lake or a bigger river.
The place where the river flows out into a bigger body of water is called the 'mouth' of the river. As a river flows towards its mouth, the countryside around the river often changes from hilly to flat. As it flows over the flat land the river becomes wider and slower. A wide slow river is called an 'old river'.
What is the place where a river meets an ocean called?
An old river often floods across the land after there is lots of rain at the headwaters. An old river slowly builds up its banks on either side; the high banks are called levees. An old river often meanders twists and turnsand sometimes, after a flood, it leaves lakes behind which are called ox-bows or billabongs.
The flow of water is turbulent. There are great differences in density, salinity and temperature. Therefore God said about those skeptical who are confused that they are: And the volume of these huge reservoirs is as many times as what rivers flow into seas. So, each spring at the bottom of the ocean pumps a huge amount of fresh water which is as many times of what is pumped by that river. This fresh water which flows from the bottom of oceans sometimes reaches the surface of water, goes for thousands of meters till it reaches the surface of water.
The picture of oceans and bays taken by satellites show the existence of these springs which usually mix with salty water. This is palatable and sweet, and that is salt and bitter I did a long stop in front of these great words and asked why did God be he blessed and Exalted say This is palatable and sweet and did not say palatable only and why he said and that is salt and bitter and did not say salt?
Here we will discover a miracle in these four words: Also seas water contains a superfluous amount of salinity, in each cubic meter of sea water there is around 35 kilograms of saltthere is a superfluous amount of salinity in seas so God be he exalted say: If we follow the meditation of this holy verse, God be he blessed and exalted says: The last time this happened, inextra water had to be spilled from dams upstream to keep the salt front from becoming a public health hazard.
The lifeblood of estuaries Estuarine circulation serves a valuable, ecological function. The continual bottom flow provides an effective ventilation system, drawing in new oceanic water and expelling brackish water. This circulation system leads to incredible ecological productivity. Nutrients and dissolved oxygen are continually resupplied from the ocean, and wastes are expelled in the surface waters.
This teeming population of plankton provides a base for diverse and valuable food webs, fueling the growth of some of our most prized fish, birds, and mammals—salmon, striped bass, great blue heron, bald eagles, seals, and otters, to name a few. The vigor of the circulation depends in part on the supply of river water to push the salt water back.
- Where the Rivers Meet the Sea
The San Francisco Bay area has become a center of controversy in recent years because there are many interests competing for the fresh water flowing into the Bay—principally agriculture and urban water supplies extending to Southern California. Estuarine circulation is also affected by the tides; stronger tides generally enhance the exchange and improve the ecological function of the system.
The Hudson estuary, for example, is tidal for miles inland to Troy, N. Some are self-inflicted; some are caused by the abuses of human habitation. An estuary, with all of its dynamic stirrings, has one attribute that promotes its own destruction: When suspended mud and solids from a river enter the estuary, they encounter the salt front.
Unlike fresh water, which rides up and over the saline layer, the sediment falls out of the surface layer into the denser, saltier layer of water moving into the estuary.
As it drops, it gets trapped and accumulates on the bottom. Slowly, the estuary grows muddier and muddier, shallower and shallower. Occasionally a major flood will push the salt right out of the estuary, carrying the muddy sediment along with it. Sediment cores in the Hudson River indicate that sediment may accumulate for 10, 20, or even 50 years, laying down layers every year like tree rings. But then a hurricane or big snowmelt floods the river, wipes out the layers of sediment, and sends the mud out to sea.
It is good because a big storm can keep an estuary from getting too shallow too fast. In fact, it appears that over the last 6, years, the natural dredging by large storms has maintained nearly constant water depth in the Hudson estuary. Environmental regulations are far stricter now than they were 50 years ago, and we have stopped using many chemicals that play havoc with the environment. For instance, polychlorinated biphenyls PCBs were banned in the s because they were shown to be toxic to fish and wildlife, and to the humans who consume them.
Trickle-down effects Billions of dollars are now being spent to clean up American estuaries contaminated by industrial pollution.
The Superfund program of the U.