River Dynamics and Mississippi River Management

<p>By fast-flowing water vertically eroding a channel. (C)</p> Signup and view all the answers

<p>Vertical erosion and creating a V-shaped valley. (B)</p> Signup and view all the answers

<p>It flows slower, leading to less erosion. (D)</p> Signup and view all the answers

<p>It recedes upstream via vertical erosion. (C)</p> Signup and view all the answers

<p>To prevent widespread flooding and maintain a navigable channel for shipping. (B)</p> Signup and view all the answers

<p>Fast flowing water, and a steep slope. (D)</p> Signup and view all the answers

<p>To maintain river structures and perform necessary actions like dredging and earthmoving. (B)</p> Signup and view all the answers

<p>They prevent flooding by controlling the flow of water from one channel to another. (A)</p> Signup and view all the answers

<p>To deepen the river channel for shipping and help mitigate the risk of flooding. (B)</p> Signup and view all the answers

<p>Diverting river flow when floods rise. (C)</p> Signup and view all the answers

<p>Locks and Dams. (D)</p> Signup and view all the answers

<p>Straightening the river's path. (B)</p> Signup and view all the answers

<p>Spillways (A)</p> Signup and view all the answers

<p>Allowing the river to follow its natural course without human intervention. (B)</p> Signup and view all the answers

<p>Lower requirements for maintenance of river structures. (C)</p> Signup and view all the answers

<p>Increased flooding, changes in river path and depth. (C)</p> Signup and view all the answers

<p>Decline in business activity and danger to farms. (B)</p> Signup and view all the answers

<p>Significant and unpredictable damage to infrastructure and communities. (B)</p> Signup and view all the answers

<p>A system that combines elements of both managed and unmanaged approaches. (A)</p> Signup and view all the answers

<p>It would favor some species while harming others, altering the industry. (B)</p> Signup and view all the answers

<p>By redirecting water, sediment, and nutrients to mimic natural land-building processes. (A)</p> Signup and view all the answers

<p>To create long-term, self-sustaining wetland restoration. (A)</p> Signup and view all the answers

<p>Possible changes in which fish would survive due to altered habitat. (D)</p> Signup and view all the answers

<p>The level of nutrients in the river and brackish waters. (A)</p> Signup and view all the answers

<p>Balancing the needs of both human communities and wildlife along the river. (C)</p> Signup and view all the answers

<p>Its impacts on ecosystems up and down the river. (C)</p> Signup and view all the answers

<p>The specific impact on the human populations that live and work along the river. (D)</p> Signup and view all the answers

<p>To ensure the management plan resolves and mitigates the risk of future flooding. (D)</p> Signup and view all the answers

<p>That there are multiple approaches to managing the Mississippi River, each with different goals and impacts. (C)</p> Signup and view all the answers

<p>Longshore currents depositing sediment (A)</p> Signup and view all the answers

<p>Sandbar (A)</p> Signup and view all the answers

<p>Accumulation of sediment to break the water's surface and support plant growth (B)</p> Signup and view all the answers

<p>Spit (C)</p> Signup and view all the answers

<p>Erosional processes (A)</p> Signup and view all the answers

<p>A jagged, narrow ridge separating two adjacent valley glaciers. (D)</p> Signup and view all the answers

<p>Plucking removes rocks from sides of cirques, causing them to merge and create a ridge. (B)</p> Signup and view all the answers

<p>On bedrock and sometimes on the top of the glacier. (B)</p> Signup and view all the answers

<p>Rocks embedded in glacier scraping and gouging the bedrock. (A)</p> Signup and view all the answers

<p>Steep sides and flat bottom. (A)</p> Signup and view all the answers

<p>By abrading the bottom and sides of the valley. (C)</p> Signup and view all the answers

<p>Delta (B)</p> Signup and view all the answers

<p>It is an individual feature created by glacial sculpting. (A)</p> Signup and view all the answers

Prevent widespread flooding and ensure deep river channel for shipping.

Maintain structures and manage the Mississippi River through dredging and earthmoving.

Controls flooding by regulating water flow.

Weir structure that prevents flooding in the Mississippi River.

Facilitates shipping and helps prevent flooding by deepening the riverbed.

Structures built to prevent flooding by holding back water.

Facilitate shipping traffic on the river while managing water levels.

Actions include raising riverbank height and controlling water flow.

The process where flowing water wears away rocks and soil.

The speed at which water flows in a river.

Erosion that cuts deeply into the riverbed, deepening the channel.

Erosion that cuts into the sides of the river, widening the banks.

A narrow valley formed by fast-flowing water that undermines banks.

Bends or curves in a river formed by lateral erosion.

The movement of eroded material downstream by the river.

Erosion at waterfalls where edges recede over time.

A river management strategy where natural processes are allowed to function without human interference.

Potentially greater natural biodiversity and lower maintenance costs.

Increased flooding risks and altered river paths, impacting infrastructure.

They predict a decline in business and threats to agriculture if unmanaged.

Allowing the river to flow naturally could disrupt towns and farms nearby.

A river management approach combining human intervention with natural processes.

A project aimed at redirecting river materials to restore wetlands in the Barataria Basin.

Using river sediment and nutrients to promote wetland restoration and resilience.

A jagged ridge separating two adjacent valley glaciers at the glacier's top.

Arêtes form when glaciers on either side of a rounded ridge erode it, creating two cirques that converge.

Parallel lines and grooves on bedrock and glacier surfaces caused by glacial movement.

Striations are formed by rocks embedded in glaciers scraping the bedrock beneath.

Glaciers erode V-shaped valleys into U-shaped valleys by abrading their bottoms and sides.

A peak formed at the top of a mountain, where several arêtes meet.

A bowl-shaped depression carved by a glacier, often found at the head of a valley.

A ridge of sand that extends outward from the shore into calmer waters, connected to the shore.

A submerged or partially exposed ridge of sand parallel to the shore, formed by waves and currents.

Long, sandy islands formed from sandbars that rise above water and support plant growth, protecting the shore.

Flow of water parallel to the shore that moves sediment, contributing to the formation of spits and sandbars.

Natural actions that can break down features like spits into other formations such as barrier islands and sandbars.

Changes in nutrient levels could alter fish species in brackish waters of the Mississippi River.

Variations in fish species survival affect local economies and fishing practices.

The effects of a management solution on the ecosystems along the river.

How proposed river management affects communities and stakeholders along the river.

Traditional management techniques for the Mississippi River, often focused on flood control and navigation.

Processes through which glaciers erode land and deposit material, shaping landscapes.