Answer: man activities such as agriculture, transport, energy production or urban development exert pressures on the water environment. When addressing pressures at the basin-wide scale, it has to be considered that cumulative effects may occur. Effects can occur both downstream pollutant of a particular pressure. Addressing these issues effectively requires a basin-wide perspective and cooperation between countries.
Organic pollution refers to emissions of non-toxic organic substances that can be biologically decomposed by bacteria to a high extent. The key emitters of organic pollution are point sources like untreated or not sufficiently treated municipal wastewater from households, industries and major agricultural farms. The primary impact of organic pollution on the aquatic environment is dissolved oxygen depletion due to biochemical decomposition of organic matter. In the most severe cases this can lead to anaerobic conditions, to which only some specific organism can accommodate. The pollution with organic substances can therefore cause changes in the natural composition of the aquatic flora and fauna. It can also be associated with health hazards due to possible microbiological contamination of waters.
Nutrient pollution is caused by releases of nitrogen (N) and phosphorus (P) into the aquatic environment. Nutrient emissions can originate from both point and diffuse sources. Point sources of nutrient pollution are similar to those of the organic pollution. Diffuse pathways such as overland flow, urban runoff, soil erosion, tile drainage flow and groundwater flow can remarkably contribute to the emissions into surface waters transporting nutrients from agriculture, urban areas, atmosphere and even from naturally covered areas. Impacts on water status caused by nutrient pollution can be recognized through substantial changes in water ecosystems. In case of nutrient enrichment, water bodies can turn to eutrophic state where the growth of algae and/or macrophytes is substantially accelerated. Eutrophication severely impairs water quality and ecosystem functioning (e.g. oxygen depletion, toxicity, overpopulation of species) and might limit or even hinder human water uses as well (e.g. recreation, fisheries, drinking water supply).
Hazardous substances pollution involves contamination with priority substances and other specific pollutants with toxic effects on aquatic organisms and humans. Hazardous substances can be emitted from both point and diffuse sources. The most important sources of hazardous substances pollution are industrial facilities, agriculture (pesticide and contaminated sludge application), contaminated and mining sites, households and public buildings via municipal wastewater and urban run-off (deposited air pollutants, litter, combined sewer overflows). Moreover, significant volumes of deadly toxins can be unexpectedly flushed directly into watercourses by occasional industrial accidents or floods. Hazardous substances can pose serious threat to the aquatic environment. Depending on their concentration and the actual environmental conditions, they can cause acute (immediate) or chronic (latent) toxicity. Some of the hazardous substances are persistent, slowly degradable and can accumulate in the ecosystem.
Surface waters suffer significantly from hydromorphological alterations. Interruptions to river and habitat continuity, disconnection of adjacent wetland/floodplains, hydrological alterations and future infrastructure can hugely impact water status and therefore will need to be addressed in future.
It is assumed that the effects of the floods that impacted the countries in the Danube River Basin in recent years were worsened due to deforestation, the destruction of natural floodplains and climate change. Preserving the natural habitats of the many species living in the basin is a constant struggle. The habitats of pelicans in the Danube Delta and sturgeon species are particularly under threat.
Major problems affecting aquatic ecosystems in the Danube River Basin
Excessive nutrient loads (particularly nitrogen and phosphorous)
High amounts of organic substances originating from untreated or poorly treated wastewater
Changes in river flow patterns (hydromorphological alterations) and its effect on sediment transportation
Contamination with hazardous substances (including heavy metals and organic micropollutants)
Accidental pollution from industrial and mining facilities
Degradation and loss of wetlands
Human pressures and impacts are investigated and addressed in the frame of the Danube River Basin Management Plan (according to the WFD).
Hello please help I will give brainliest!
which of the following is correct order from oldest to youngest
Answer:
the answer is b
Explanation:
state five ways in which tropical rainforest may be conserved
Answer
:Eliminate Deforestation From Your Diet. It may not be well known, but many of the foods we eat are grown on deforested lands. ...
Buy Responsibly Sourced Products. ...
Choose Products That Give Back. ...
Support Indigenous Communities.
Explanation:
Answer:
1. Eliminate Deforestation From Your Diet
2. Buy Responsibly Sourced Products
3. Choose Products That Give Back
4. Support Indigenous Communities
5. Reduce Your Carbon Footprint
Explanation:
I hope this helped:)
Explain ONE reason why the United States does not have a primate city.
Answer: Untitled Document. A primate city is one that is at least twice as large as the next largest city in that country. ... Not all countries have a Primate City. The United States does not, because there are similar sized agglomerations on both the East Coast, New York, and the West Coast, Los Angeles.
Explanation:
What sea lies between Australia and Melanesia?
Answer:
Coral Sea
Explanation:
Mark brainiest pls
¿si somos la especie con más capacidad racional en el plantea por qué no hacemos un uso racional de los recursos y afectamos el lugar que nos permite mantenernos con vida?
Answer:
Pese a ser la especie con más capacidad racional en el planeta, los humanos no hacemos un uso racional de los recursos y afectamos el lugar que nos permite mantenernos con vida porque somos seres primordialmente egoístas, que buscamos nuestro propio beneficio económico a través de la sobreexplotación de nuestros recursos naturales, sin pensar en cómo afectamos la capacidad de carga de nuestro planeta y las necesidades de las demás personas que habitan nuestro mismo planeta.
Así, la racionalidad humana cede ante la avaricia y la voluntad de enriquecimiento de las personas, lo cual inevitablemente tiene consecuencias negativas para el planeta y la sociedad en su conjunto.
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Answer:
hey hey hello hello mateeeeee
Answer:
The split between Christianity and Judaism comes down to some modern scholars who have suggested the designations "Jewish believers in Jesus" or "Jewish followers of Jesus" as better reflecting the original context. The inclusion of non-Jews led to a growing split between Jewish Christians (i.e., the Jewish followers of Jesus) and non-Jewish Christians. The split between Protestantism and Catholicism comes down to the Reformation began in 1517 when a German monk, who was called Martin Luther, protested about the Catholic Church. His followers became known as Protestants. Many people and governments adopted the new Protestant ideas, while others remained faithful to the Catholic Church. This situation led to a split in the Church.
non examples for the word love
Answer:
non example = antonym?
Hate is the opposite of love.
"I despise my sister" is an example of (antonym of love)
Which statement is not correct about the use of the forests to regulate water and filtration?
Tree planting can invariably bring down temperatures in urban areas, especially in summers.
Forests regulate the natural supply of clean water as the canopy triggers the release of water vapor that in turn maintains precipitation.
The same strong roots filter sediments and chemicals, making for a higher-quality supply of water.
Answer:
Tree planting can invariably bring down temperatures in urban areas, especially in summers.
Explanation:
This is kind of a trick question, because all of these answers can be correct. The answer above isn't necessarily wrong, it's just the wrong answer for this question. Trees can reduce temperatures naturally, particularly through shade and evapotranspiration, which is the evaporation and transpiration of water through soil and plants.
Trees however, are part of the water cycle and do evaporate water and perform transpiration, as well as filtering sediment from erosion through their roots, providing a cleaner runoff into water sources. They can also filter chemicals, heavy metals, and even some oils from roads.
How does site and situation influence the origin, function, and growth of cities?
Answer:
Depending on the location of the civilization, it could be able to grow freely and use all of its resources around it in order to grow. Such as Mesopotamia which was able to use both of its rivers in order to farm and make a stronger civilization
Explanation:
nah
Which position must the Moon be in to appear as a waning gibbous moon from Earth?
Answer:
I think it's the top left answer choice because top right is a new moon, bottom left is a waxing crescent, and bottom right is 1st quarter.
Riots for economic opportunities in North Africa were called the?
Answer: Arab spring
Explanation:
The riots for economic opportunities in North Africa were refered to as the Arab spring. The Arab Spring started in Tunisia and it was anti-government protests, and armed rebellions which spread across Arab countries such as Tunisia, Egypt etc in 2010.
It began due to the oppressive regimes and the low standard of living that was witnessed by the people. The movement consisted of matches, demonstrations, and non-violent civil resistance.
True or False.
In a federal government state power is shared, giving much authority to individual provinces and local governments
Answer:
True
Explanation:
Concurrent powers are powers that are shared by both the State and the federal government.
What type of adaptation relates to the stages of growth and reproduction of plants?
Inherited trait
Life cycle difference
Learned behavior
Physical characteristic
Answer:
Inherited trait
Explanation:
The type of adaptation which relates to the stages of growth and reproduction of plants is known as Inherited traits.
These traits are mostly gotten from the parents and they act as a guide for the offspring on the steps of how to metabolize and perform other tasks needed for its survival and reproduction to prevent extinction.
Answer:
Inherited trait is not correct,just got it wrong on test.
Explanation:
Which neighboring does France has the best relationship with? Why?
Which neighboring does France have the worst relationship with? Why?
Answer:
Any really
Explanation:
France has maintained a very good relationship with almost all the neighboring countries that surround it
How does climate affect the way people that lives in Toronto, Canada? (two ways)
Answer:
The regions of Western Canada are very vulnerable to climate change related extreme weather events. The increasing frequency of forest fires, storm surges, coastal erosion, landslides, snowstorms, hail, droughts, and floods could have devastating impacts on the critical infrastructure of British Columbia and Alberta.
Which of the following is NOT a common agent of erosion?
A census tract is defined as
an area where a large percentage of poor immigrants live in squatter settlements.
a large node of office and retail activities on the edges of an urban area.
the combination of all metropolitan and micropolitan statistical areas.
a neighborhood that contains about 5,000 residents in a certain area.
the area of a city where retail and office activities are clustered.
Answer:
D
Explanation:
A census tract is a part of an urbanized area that contains about 5,000 residents. it does not include inner city.(metropolitan)
The exact date that Judaism began is well known
True or False
Answer:
Explanation:
TrrrUEeUE
A person living in Micronesia would be MOST LIKELY to be involved in which of these occupations?
Answer:
C
Explanation:
because the place is best known for diving and that involves water.
name the organisation which reclassified pluto
Answer: The International Astronomical Union (IAU) .
The International Astronomical Union (IAU), a worldwide organization of astronomers, reclassified Pluto as a dwarf planet. IAU defines a planet as a celestial body that has the following qualities .
Happy to help
What region is home to the southern most point of New Zealand?
a. Otago
b.Bay of Plenty
c. Southland
d. Canterbury
-Body of water bordered by...
Libya
Turkey & Georgia
Turkmenistan & Iran
Uzbekistan & Kazakhstan
Answer:
ok so then yeah and t lotlf xqc is wirfd<v
Explanation: yeha so weere good so 5 pookikns
The Cocos Plate is located at the following approximate latitude and longitude:
2,900,000 km2. Movement1, north-east. Speed1, 67 mm/year.
Which is a negative impact of outsourcing?
Select one:
A. cheaper labor cost
B. takes jobs out of countries and places them in other countries
C. helps the economy of other nations
D. increased relationships with foreign countries
Answer:
B. takes jobs out of countries and places them in other countries
Explanation:
Outsourcing is one of the practices in business that deals with assigning the job of performing tasks and handling operations of the company to any third party. The third party is given the opportunity to perform the major task and job function in order to save the costs. It is a process of cost cutting that has many negative impacts on the business of the entire country. The jobs are outsourced to the developing countries and in turn the jobs in the main country falls below The unemployment rate increases in path of cost cutting.
how long is mount Everest
Answer:
Mount Everest has a height of 29,031.7 feet (8,848.86 m).
Explanation:
As Earth's highest mountain above sea level, located in the Mahalangur Himal sub-range of the Himalayas, Mount Everest has an elevation of 29,031.7 feet (8,848.86 meters).
que es un continente
Un continente es una de las siete principales divisiones de tierra de la Tierra. Los continentes son, de mayor a menor: Asia, África, América del Norte, América del Sur, Antártida, Europa y Australia. Cuando los geógrafos identifican un continente, suelen incluir todas las islas asociadas a él.
Based on the information presented in this map, one can conclude that
A
the majority of slave trading took place between African countries.
B
several European countries participated in the African slave trade.
С
most of slaves that were traded originally lived in east Africa.
D
Asia imported more slaves than any other continent.

I miss juice wrld I met him in irl once i was so happy
Answer:
big oof
Explanation:
only thing that sucks with juice world being dead is we cant get anymore juice from the world big rip
Which two large land masses formed when Pangea first started
to separate?
A. Africa and Europe
B. Europe and Laurasia
C. Gondwanaland and North America
D. Laurasia and Gondwanaland