Algal blooms Algal blooms are one of the more insidious consequences of eutrophication. In addition to being unsightly and smelly, masses of blue-green algae can literally choke the life out of a lake or pond by depriving it of much needed oxygen. At first glance this may seem like something of a paradox - since blue-green algae undergoes photosynthesis, it should produce more oxygen than it consumes. However, after large concentrations of algae have built up, aerobic processes such as respiration and the decomposition of dead algal cells becomes increasingly significant.
If you have been to Toulouse before and stood on Pont Neuf, you will have seen this river, one of the biggest in France. Any river, anywhere in the world can be split into three sections. Section 1 is the upper course think high up in the mountains.
Section 2 is the middle course where it comes down into the lowlands. Section 3 is the lower course where it is at its widest and most powerful and enters the sea.
Start at the source and work your way down to the mouth of the Garonne.
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Remember that the conditions in the Pyrenees can be harsh and therefore weathering can affect the slopes of the valley.
No access to OCR B textbook? Click here for more information on V Shaped valleys and here for information on interlocking spurs. Task 3 - Study the Google StreetView images below.
The first is of an area close to the source of the Garonne and the second near Vielha. Have a good look around. Take a screenshot and complete a piece of writing describing the typical characteristics of this upper course area of the river.
Click to enlarge task 3 - worksheet Upper course of the garonne Waterfall Formation Waterfall: Waterfalls are where water descends vertically. Waterfalls are usually created by a change in rock type. As the river moves from hard rock to soft rock, erosion increases creating a waterfall.
As the water falls over the waterfall it erodes the river bed and the bottom of the waterfall. This makes a plunge pool and causes some undercutting.
The undercutting creates an overhang which will eventually become too heavy to be supported and collapse into the plunge pool.
The whole process then starts again, which means the waterfall is constantly retreating upstream towards the source.
A gorge is a deep sided valley left behind when a waterfall retreats. Task 4 - Use an annotated you draw sketch to explain the formation of a waterfall and a gorge.
Homework AssignmentsSummer Homework Guidelines Summer Homework: All 4 Assignments. Due Aug. 14, Purchase a composition journal. Click on the link to see a picture of an example. Due on Aug. 14, / Week 1 Homework: a) Parents/Guardian. Custom Eutrophication Essay Natural eutrophication reposes on limited natural geology and features of the affected catchment water body, while cultural eutrophication is related to social actions that end up hastening the eutrophication course past the natural process rate such as intensification of nutrients into marine ecosystems. Eutrophication Essay Eutrophication, or cultural eutrophication, is the enhancement of the natural process by which streams, lakes, reservoirs, and estuaries become enriched with nutrients (phosphorous and nitrogen), enabling the ecosystem to support higher rates of production as measured by biomass or energy per unit area over time.
Watch the video to the right hand side. Task 5 - Note taking on the following Rapids are sections of rough turbulent white water.Acid rain - Chemistry of acid deposition: Acid rain is a popular expression for the more scientific term acid deposition, which refers to the many ways in which acidity can move from the atmosphere to Earth’s surface.
Acid deposition includes acidic rain as well as other forms of acidic wet deposition—such as snow, sleet, hail, and fog (or cloud water).
Free Essay: Eutrophication comes from the Greek word "eutrophos" meaning well-nourished.
In other words, this natural process found in water occurs. Eutrophication and algal boom. Eutrophication Eutrophication is a condition in an aquatic ecosystem where high nutrient concentrations stimulate blooms of algae (e.g., phytoplankton). The East River is a salt water tidal estuary in New York regardbouddhiste.com waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end.
It separates the borough of Queens on Long Island from the Bronx on the North American mainland, and also divides Manhattan from Queens and Brooklyn, which are also on Long Island. Published: Tue, 27 Jun Eutrophication is world-wide environmental issue environmental problems that are related to high concentration nutrients.
It is the process due to increment of algae productivity which affects adversely aquatic life and also human and animal health. Eutrophication Essay Eutrophication, or cultural eutrophication, is the enhancement of the natural process by which streams, lakes, reservoirs, and estuaries become enriched with nutrients (phosphorous and nitrogen), enabling the ecosystem to support higher rates of production as measured by biomass or energy per unit area over time.