What is the flat land along a river called?
Abyssal plains are found at the bottom of the ocean. Plains near rivers are called flood plains.
What is a flat low lying land built up from soil carried downstream by a river and deposited at its mouth?
delta. flat, low-lying land built up from soil carried downstream by a river and dropped at the river’s mouth. downstream. direction in which a river or stream flows from its source to its mouth.
What is area of land drained by a river and its branches area of land surrounded by lands of higher elevations?
UNIT ONE – GEOGRAPHIC TERMS
| A | B |
|---|---|
| BASIN | AREA OF LAND DRAINED BY A GIVEN RIVER AND ITS BRANCHES, AREA OF LAND SURROUNDED BY LANDS OF HIGHER ELEVATIONS |
| BAY | PART OF A LARGE BODY OF WATER THAT EXTENDS INTO A COASTLINE |
| CANYON | DEEP AND NARROW VALLEY WITH STEEP WALLS |
| CAPE | POINT OF LAND SURROUNDED BY A BODY OF WATER |
What is a river flat?
from The Century Dictionary. noun The alluvial plain adjacent to a river; bottom; interval; intervale.
What is a low lying area between mountains or hills known as?
A valley is a stretch of low land between two mountain or hill ranges.
What happens when the slope of a stream is too gentle?
Stream Patterns. If the slope is too gentle and velocity is too slow to transport the sediments being supplied by weathering and erosion, the sediments will pile up. This increases the gradient which causes the water to flow faster which increases erosion and transport, which then reduces the gradient.
What kind of material is deposited in the Delta River?
The finest material is deposited beyond the river’s mouth. This material is called alluvium or silt . Silt is rich in nutrients that help microbes and plants—the producers in the food web —grow. As silt builds up, new land is formed.
Why does erosion occur in the lower reaches of a stream?
In the lower reaches of a stream, where the discharge is greater, since friction is less the stream need not be so steep to transport the load. If it were steeper than needed to transport the sediments erosion would result. But this would decrease the gradient leading to a decrease in erosion.
How does the cross sectional area affect the flow of a stream?
The greater the cross-sectional area in comparison to the wetted perimeter, the more freely flowing will the stream be because less of the water in the stream is in proximity to the frictional bed. So as hydraulic radius increases so will velocity (all other factors being equal).