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They reduce flow, and create a backpool which reduces flow downstream

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13y ago

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How did the Mesopotamians control their rivers?

Through dams, weirs and canals.


What three factors affect how fast rivers flows?

The amount of rain fall feeding the river. The slope of the riverbed. The placement of weirs and dams, and the natural obstruction caused by boulders impeding the flow.


What is the definition of weirs?

Weirs are man made obstacles in rivers. They are similar to dams as they allow water to pool behind them and let water flow over them. They are used to alter the flow of a river to make it navigable.


How can you use 'weirs' in a sentence?

The stream flow was interrupted by a series of weirs.


What is end contraction of a sharp crested weir?

The sharp-crested weirs are classified according to the shape of the weir opening, such as rectangular weirs and triangular weirs.


What are weirs?

POT-A-TO


Did the Hupa Indians use weirs?

No they used there hands with bare


What was the affect of the rivers flooding in Mesopotamia?

The affect of rivers flooding in Mesopotamia was that the rivers would deposit silt which was very good for growing crops


Do weirs prevent flooding?

Weirs can help manage water flow and reduce the risk of flooding by controlling the discharge of water in rivers and streams. They create a barrier that can regulate water levels, slowing down the flow and allowing for better management of excess rainfall or runoff. However, while weirs can mitigate flooding in certain areas, they are not a foolproof solution and may not prevent flooding during extreme weather events. Proper design and maintenance are crucial for their effectiveness in flood management.


Do rivers affect thunderstorms?

no


Why are weirs made?

to catch your fish


What are weirs made of?

what is weris what is it made from